390685346 has 8 divisors (see below), whose sum is σ = 586165440. Its totient is φ = 195296868.

The previous prime is 390685327. The next prime is 390685363. The reversal of 390685346 is 643586093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 390685297 and 390685306.

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 3 ways as a sum of consecutive naturals, for example, 11006 + ... + 30041.

It is an arithmetic number, because the mean of its divisors is an integer number (73270680).

Almost surely, 2^390685346 is an apocalyptic number.

390685346 is a deficient number, since it is larger than the sum of its proper divisors (195480094).

390685346 is a wasteful number, since it uses less digits than its factorization.

390685346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45808.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 390685346 is about 19765.7619635571. The cubic root of 390685346 is about 731.0420758735.

The spelling of 390685346 in words is "three hundred ninety million, six hundred eighty-five thousand, three hundred forty-six".