38252729440 has 24 divisors (see below), whose sum is σ = 90372073680. Its totient is φ = 15301091712.

The previous prime is 38252729321. The next prime is 38252729477. The reversal of 38252729440 is 4492725283.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119539620 + ... + 119539939.

It is an arithmetic number, because the mean of its divisors is an integer number (3765503070).

Almost surely, 2^38252729440 is an apocalyptic number.

It is an amenable number.

38252729440 is an abundant number, since it is smaller than the sum of its proper divisors (52119344240).

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

38252729440 is a wasteful number, since it uses less digits than its factorization.

38252729440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239079574 (or 239079566 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 38252729440 in words is "thirty-eight billion, two hundred fifty-two million, seven hundred twenty-nine thousand, four hundred forty".