38017378940 has 12 divisors (see below), whose sum is σ = 79836495816. Its totient is φ = 15206951568.

The previous prime is 38017378933. The next prime is 38017378963. The reversal of 38017378940 is 4987371083.

It is a super-2 number, since 2×38017378940² (a number of 22 digits) contains 22 as substring.

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, 950434454 + ... + 950434493.

It is an arithmetic number, because the mean of its divisors is an integer number (6653041318).

Almost surely, 2^38017378940 is an apocalyptic number.

It is an amenable number.

38017378940 is an abundant number, since it is smaller than the sum of its proper divisors (41819116876).

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

38017378940 is a wasteful number, since it uses less digits than its factorization.

38017378940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900868956 (or 1900868954 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 38017378940 in words is "thirty-eight billion, seventeen million, three hundred seventy-eight thousand, nine hundred forty".