390804024 has 64 divisors (see below), whose sum is σ = 1114071840. Its totient is φ = 113172480.

The previous prime is 390803983. The next prime is 390804031. The reversal of 390804024 is 420408093.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 390803982 and 390804000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31537 + ... + 42144.

Almost surely, 2^390804024 is an apocalyptic number.

390804024 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

390804024 is an abundant number, since it is smaller than the sum of its proper divisors (723267816).

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

390804024 is a wasteful number, since it uses less digits than its factorization.

390804024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73720 (or 73716 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 390804024 is about 19768.7638460274. The cubic root of 390804024 is about 731.1160909592.

The spelling of 390804024 in words is "three hundred ninety million, eight hundred four thousand, twenty-four".