38860140 has 96 divisors (see below), whose sum is σ = 120121344. Its totient is φ = 9308160.

The previous prime is 38860139. The next prime is 38860141. The reversal of 38860140 is 4106883.

It is a happy number.

38860140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38860139) and next prime (38860141).

It is a super-2 number, since 2×38860140² = 3020220961639200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 38860098 and 38860107.

It is not an unprimeable number, because it can be changed into a prime (38860141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63717 + ... + 64323.

It is an arithmetic number, because the mean of its divisors is an integer number (1251264).

Almost surely, 2^38860140 is an apocalyptic number.

38860140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38860140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60060672).

38860140 is an abundant number, since it is smaller than the sum of its proper divisors (81261204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38860140 is a wasteful number, since it uses less digits than its factorization.

38860140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 38860140 is about 6233.7901793371. The cubic root of 38860140 is about 338.7152785498.

The spelling of 38860140 in words is "thirty-eight million, eight hundred sixty thousand, one hundred forty".