38402378238 has 32 divisors (see below), whose sum is σ = 92396701440. Its totient is φ = 10394628480.

The previous prime is 38402378227. The next prime is 38402378249. The reversal of 38402378238 is 83287320483.

It is an interprime number because it is at equal distance from previous prime (38402378227) and next prime (38402378249).

It is a super-3 number, since 3×38402378238³ (a number of 33 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24060843 + ... + 24062438.

It is an arithmetic number, because the mean of its divisors is an integer number (2887396920).

Almost surely, 2^38402378238 is an apocalyptic number.

38402378238 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

38402378238 is an abundant number, since it is smaller than the sum of its proper divisors (53994323202).

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

38402378238 is a wasteful number, since it uses less digits than its factorization.

38402378238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48123312.

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 38402378238 in words is "thirty-eight billion, four hundred two million, three hundred seventy-eight thousand, two hundred thirty-eight".