38658870 has 56 divisors (see below), whose sum is σ = 104350896. Its totient is φ = 10307088.

The previous prime is 38658853. The next prime is 38658877. The reversal of 38658870 is 7885683.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38658877) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4639 + ... + 9941.

Almost surely, 2^38658870 is an apocalyptic number.

38658870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38658870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52175448).

38658870 is an abundant number, since it is smaller than the sum of its proper divisors (65692026).

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

38658870 is an equidigital number, since it uses as much as digits as its factorization.

38658870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5328 (or 5313 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 38658870 is about 6217.6257526487. The cubic root of 38658870 is about 338.1294918331.

The spelling of 38658870 in words is "thirty-eight million, six hundred fifty-eight thousand, eight hundred seventy".