390734258 has 16 divisors (see below), whose sum is σ = 612005760. Its totient is φ = 186744096.

The previous prime is 390734251. The next prime is 390734269. The reversal of 390734258 is 852437093.

It is not an unprimeable number, because it can be changed into a prime (390734251) 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, 120158 + ... + 123366.

It is an arithmetic number, because the mean of its divisors is an integer number (38250360).

Almost surely, 2^390734258 is an apocalyptic number.

390734258 is a deficient number, since it is larger than the sum of its proper divisors (221271502).

390734258 is a wasteful number, since it uses less digits than its factorization.

390734258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5881.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 390734258 is about 19766.9992158648. Note that the first 3 decimals coincide. The cubic root of 390734258 is about 731.0725822970.

The spelling of 390734258 in words is "three hundred ninety million, seven hundred thirty-four thousand, two hundred fifty-eight".