38403520672 has 24 divisors (see below), whose sum is σ = 82480289472. Its totient is φ = 17456145600.

The previous prime is 38403520627. The next prime is 38403520679. The reversal of 38403520672 is 27602530483.

It is not an unprimeable number, because it can be changed into a prime (38403520679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54550104 + ... + 54550807.

It is an arithmetic number, because the mean of its divisors is an integer number (3436678728).

Almost surely, 2^38403520672 is an apocalyptic number.

38403520672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38403520672 is an abundant number, since it is smaller than the sum of its proper divisors (44076768800).

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

38403520672 is a wasteful number, since it uses less digits than its factorization.

38403520672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109100932 (or 109100924 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 38403520672 in words is "thirty-eight billion, four hundred three million, five hundred twenty thousand, six hundred seventy-two".