390464894 has 16 divisors (see below), whose sum is σ = 606735360. Its totient is φ = 188327040.

The previous prime is 390464849. The next prime is 390464909. The reversal of 390464894 is 498464093.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19454 + ... + 34049.

It is an arithmetic number, because the mean of its divisors is an integer number (37920960).

Almost surely, 2^390464894 is an apocalyptic number.

390464894 is a deficient number, since it is larger than the sum of its proper divisors (216270466).

390464894 is a wasteful number, since it uses less digits than its factorization.

390464894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53635.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 390464894 is about 19760.1845639154. The cubic root of 390464894 is about 730.9045483112.

The spelling of 390464894 in words is "three hundred ninety million, four hundred sixty-four thousand, eight hundred ninety-four".