64038138 has 16 divisors (see below), whose sum is σ = 128615040. Its totient is φ = 21256256.

The previous prime is 64038127. The next prime is 64038173. The reversal of 64038138 is 83183046.

It is a junction number, because it is equal to n+sod(n) for n = 64038099 and 64038108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20895 + ... + 23762.

It is an arithmetic number, because the mean of its divisors is an integer number (8038440).

Almost surely, 2^64038138 is an apocalyptic number.

64038138 is an abundant number, since it is smaller than the sum of its proper divisors (64576902).

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

64038138 is a wasteful number, since it uses less digits than its factorization.

64038138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44901.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 64038138 is about 8002.3832700015. The cubic root of 64038138 is about 400.0794383895.

It can be divided in two parts, 6403 and 8138, that added together give a palindrome (14541).

The spelling of 64038138 in words is "sixty-four million, thirty-eight thousand, one hundred thirty-eight".