390921200 has 60 divisors (see below), whose sum is σ = 988638360. Its totient is φ = 148135680.

The previous prime is 390921187. The next prime is 390921217. The reversal of 390921200 is 2129093.

It is a self number, because there is not a number n which added to its sum of digits gives 390921200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18119 + ... + 33318.

It is an arithmetic number, because the mean of its divisors is an integer number (16477306).

Almost surely, 2^390921200 is an apocalyptic number.

It is an amenable number.

390921200 is an abundant number, since it is smaller than the sum of its proper divisors (597717160).

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

390921200 is a wasteful number, since it uses less digits than its factorization.

390921200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51474 (or 51463 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 390921200 is about 19771.7272892380. The cubic root of 390921200 is about 731.1891546033.

The spelling of 390921200 in words is "three hundred ninety million, nine hundred twenty-one thousand, two hundred".