38870988 has 48 divisors (see below), whose sum is σ = 99160320. Its totient is φ = 11778624.

The previous prime is 38870987. The next prime is 38871013. The reversal of 38870988 is 88907883.

38870988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×38870988² = 3021907416192288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38870988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38870987) 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 15 ways as a sum of consecutive naturals, for example, 8593 + ... + 12311.

It is an arithmetic number, because the mean of its divisors is an integer number (2065840).

Almost surely, 2^38870988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38870988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49580160).

38870988 is an abundant number, since it is smaller than the sum of its proper divisors (60289332).

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

38870988 is a wasteful number, since it uses less digits than its factorization.

38870988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806 (or 3804 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 38870988 is about 6234.6602152804. The cubic root of 38870988 is about 338.7467936317.

The spelling of 38870988 in words is "thirty-eight million, eight hundred seventy thousand, nine hundred eighty-eight".