390591428 has 24 divisors (see below), whose sum is σ = 713993280. Its totient is φ = 186611040.

The previous prime is 390591419. The next prime is 390591577. The reversal of 390591428 is 824195093.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129983 + ... + 132953.

It is an arithmetic number, because the mean of its divisors is an integer number (29749720).

Almost surely, 2^390591428 is an apocalyptic number.

It is an amenable number.

390591428 is a deficient number, since it is larger than the sum of its proper divisors (323401852).

390591428 is a wasteful number, since it uses less digits than its factorization.

390591428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4427 (or 4425 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 390591428 is about 19763.3860459183. The cubic root of 390591428 is about 730.9834920602.

The spelling of 390591428 in words is "three hundred ninety million, five hundred ninety-one thousand, four hundred twenty-eight".