390479852 has 12 divisors (see below), whose sum is σ = 780959760. Its totient is φ = 167348496.

The previous prime is 390479839. The next prime is 390479863. The reversal of 390479852 is 258974093.

It is a happy number.

390479852 is an admirable number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 390479797 and 390479806.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6972827 + ... + 6972882.

It is an arithmetic number, because the mean of its divisors is an integer number (65079980).

Almost surely, 2^390479852 is an apocalyptic number.

It is an amenable number.

390479852 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

390479852 is a wasteful number, since it uses less digits than its factorization.

390479852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13945720 (or 13945718 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 390479852 is about 19760.5630486583. The cubic root of 390479852 is about 730.9138814001.

The spelling of 390479852 in words is "three hundred ninety million, four hundred seventy-nine thousand, eight hundred fifty-two".