390694172 has 24 divisors (see below), whose sum is σ = 746386032. Its totient is φ = 177465600.

The previous prime is 390694163. The next prime is 390694231. The reversal of 390694172 is 271496093.

It is a congruent number.

It is an unprimeable number.

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, 101108 + ... + 104900.

It is an arithmetic number, because the mean of its divisors is an integer number (31099418).

Almost surely, 2^390694172 is an apocalyptic number.

It is an amenable number.

390694172 is a deficient number, since it is larger than the sum of its proper divisors (355691860).

390694172 is a wasteful number, since it uses less digits than its factorization.

390694172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6149 (or 6147 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 390694172 is about 19765.9852271522. The cubic root of 390694172 is about 731.0475808396.

The spelling of 390694172 in words is "three hundred ninety million, six hundred ninety-four thousand, one hundred seventy-two".