38404256402238 has 32 divisors (see below), whose sum is σ = 82046365602336. Its totient is φ = 11941771204608.

The previous prime is 38404256402219. The next prime is 38404256402243. The reversal of 38404256402238 is 83220465240483.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 1665972181 + ... + 1665995232.

It is an arithmetic number, because the mean of its divisors is an integer number (2563948925073).

Almost surely, 2^{38404256402238} is an apocalyptic number.

38404256402238 is an abundant number, since it is smaller than the sum of its proper divisors (43642109200098).

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

38404256402238 is a wasteful number, since it uses less digits than its factorization.

38404256402238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331967548.

The product of its (nonzero) digits is 8847360, while the sum is 51.

The spelling of 38404256402238 in words is "thirty-eight trillion, four hundred four billion, two hundred fifty-six million, four hundred two thousand, two hundred thirty-eight".