390748552 has 32 divisors (see below), whose sum is σ = 782380800. Its totient is φ = 182548800.

The previous prime is 390748531. The next prime is 390748559. The reversal of 390748552 is 255847093.

It is a junction number, because it is equal to n+sod(n) for n = 390748499 and 390748508.

It is not an unprimeable number, because it can be changed into a prime (390748559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19974 + ... + 34357.

It is an arithmetic number, because the mean of its divisors is an integer number (24449400).

Almost surely, 2^390748552 is an apocalyptic number.

It is an amenable number.

390748552 is an abundant number, since it is smaller than the sum of its proper divisors (391632248).

390748552 is a wasteful number, since it uses less digits than its factorization.

390748552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54397 (or 54393 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 390748552 is about 19767.3607747721. The cubic root of 390748552 is about 731.0814969868.

The spelling of 390748552 in words is "three hundred ninety million, seven hundred forty-eight thousand, five hundred fifty-two".