38423784920 has 64 divisors (see below), whose sum is σ = 86778738720. Its totient is φ = 15311821824.

The previous prime is 38423784859. The next prime is 38423784943. The reversal of 38423784920 is 2948732483.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14161484 + ... + 14164196.

Almost surely, 2^38423784920 is an apocalyptic number.

It is an amenable number.

38423784920 is an abundant number, since it is smaller than the sum of its proper divisors (48354953800).

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

38423784920 is a wasteful number, since it uses less digits than its factorization.

38423784920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924 (or 3920 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 38423784920 in words is "thirty-eight billion, four hundred twenty-three million, seven hundred eighty-four thousand, nine hundred twenty".