384639504 has 20 divisors (see below), whose sum is σ = 993652176. Its totient is φ = 128213152.

The previous prime is 384639487. The next prime is 384639509. The reversal of 384639504 is 405936483.

It is not an unprimeable number, because it can be changed into a prime (384639509) 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, 4006614 + ... + 4006709.

Almost surely, 2^384639504 is an apocalyptic number.

It is an amenable number.

384639504 is an abundant number, since it is smaller than the sum of its proper divisors (609012672).

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

384639504 is a wasteful number, since it uses less digits than its factorization.

384639504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8013334 (or 8013328 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 384639504 is about 19612.2284302422. The cubic root of 384639504 is about 727.2515049792.

The spelling of 384639504 in words is "three hundred eighty-four million, six hundred thirty-nine thousand, five hundred four".