38693938240 has 56 divisors (see below), whose sum is σ = 92166079320. Its totient is φ = 15473184768.

The previous prime is 38693938229. The next prime is 38693938253. The reversal of 38693938240 is 4283939683.

It can be written as a sum of positive squares in 4 ways, for example, as 10381164544 + 28312773696 = 101888^2 + 168264^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261324 + ... + 1291636.

It is an arithmetic number, because the mean of its divisors is an integer number (1645822845).

Almost surely, 2^38693938240 is an apocalyptic number.

It is an amenable number.

38693938240 is an abundant number, since it is smaller than the sum of its proper divisors (53472141080).

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

38693938240 is a wasteful number, since it uses less digits than its factorization.

38693938240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34319 (or 34309 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 55.

The spelling of 38693938240 in words is "thirty-eight billion, six hundred ninety-three million, nine hundred thirty-eight thousand, two hundred forty".