38007138 has 32 divisors (see below), whose sum is σ = 86679936. Its totient is φ = 11006208.

The previous prime is 38007133. The next prime is 38007191. The reversal of 38007138 is 83170083.

It is not an unprimeable number, because it can be changed into a prime (38007133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13006 + ... + 15657.

It is an arithmetic number, because the mean of its divisors is an integer number (2708748).

Almost surely, 2^38007138 is an apocalyptic number.

38007138 is an abundant number, since it is smaller than the sum of its proper divisors (48672798).

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

38007138 is a wasteful number, since it uses less digits than its factorization.

38007138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28698.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 38007138 is about 6164.9929440349. The cubic root of 38007138 is about 336.2185900466.

The spelling of 38007138 in words is "thirty-eight million, seven thousand, one hundred thirty-eight".