390479250 has 64 divisors (see below), whose sum is σ = 1113884928. Its totient is φ = 89251200.

The previous prime is 390479237. The next prime is 390479251. The reversal of 390479250 is 52974093.

It is a junction number, because it is equal to n+sod(n) for n = 390479199 and 390479208.

It is not an unprimeable number, because it can be changed into a prime (390479251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31939 + ... + 42438.

It is an arithmetic number, because the mean of its divisors is an integer number (17404452).

Almost surely, 2^390479250 is an apocalyptic number.

390479250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

390479250 is an abundant number, since it is smaller than the sum of its proper divisors (723405678).

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

390479250 is a wasteful number, since it uses less digits than its factorization.

390479250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74404 (or 74394 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 390479250 is about 19760.5478162929. The cubic root of 390479250 is about 730.9135057850.

The spelling of 390479250 in words is "three hundred ninety million, four hundred seventy-nine thousand, two hundred fifty".