390517402 has 16 divisors (see below), whose sum is σ = 639388224. Its totient is φ = 177408000.

The previous prime is 390517373. The next prime is 390517403. The reversal of 390517402 is 204715093.

It is not an unprimeable number, because it can be changed into a prime (390517403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47002 + ... + 54682.

It is an arithmetic number, because the mean of its divisors is an integer number (39961764).

Almost surely, 2^390517402 is an apocalyptic number.

390517402 is a deficient number, since it is larger than the sum of its proper divisors (248870822).

390517402 is a wasteful number, since it uses less digits than its factorization.

390517402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 390517402 is about 19761.5131505662. The cubic root of 390517402 is about 730.9373097847.

The spelling of 390517402 in words is "three hundred ninety million, five hundred seventeen thousand, four hundred two".