390340850 has 24 divisors (see below), whose sum is σ = 731762688. Its totient is φ = 154904400.

The previous prime is 390340837. The next prime is 390340877. The reversal of 390340850 is 58043093.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24386 + ... + 37085.

It is an arithmetic number, because the mean of its divisors is an integer number (30490112).

Almost surely, 2^390340850 is an apocalyptic number.

390340850 is a deficient number, since it is larger than the sum of its proper divisors (341421838).

390340850 is a wasteful number, since it uses less digits than its factorization.

390340850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61610 (or 61605 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 390340850 is about 19757.0455787296. The cubic root of 390340850 is about 730.8271415006.

The spelling of 390340850 in words is "three hundred ninety million, three hundred forty thousand, eight hundred fifty".