390009352 has 64 divisors (see below), whose sum is σ = 790632000. Its totient is φ = 179801856.

The previous prime is 390009331. The next prime is 390009353. The reversal of 390009352 is 253900093.

It is not an unprimeable number, because it can be changed into a prime (390009353) 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 15 ways as a sum of consecutive naturals, for example, 1407838 + ... + 1408114.

It is an arithmetic number, because the mean of its divisors is an integer number (12353625).

Almost surely, 2^390009352 is an apocalyptic number.

It is an amenable number.

390009352 is an abundant number, since it is smaller than the sum of its proper divisors (400622648).

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

390009352 is a wasteful number, since it uses less digits than its factorization.

390009352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 390009352 is about 19748.6544351761. The cubic root of 390009352 is about 730.6201972788.

The spelling of 390009352 in words is "three hundred ninety million, nine thousand, three hundred fifty-two".