390795951 has 64 divisors (see below), whose sum is σ = 673734656. Its totient is φ = 195955200.

The previous prime is 390795947. The next prime is 390795959. The reversal of 390795951 is 159597093.

It is not a de Polignac number, because 390795951 - 2² = 390795947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 390795951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390795959) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 515865 + ... + 516621.

It is an arithmetic number, because the mean of its divisors is an integer number (10527104).

Almost surely, 2^390795951 is an apocalyptic number.

390795951 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

390795951 is a deficient number, since it is larger than the sum of its proper divisors (282938705).

390795951 is a wasteful number, since it uses less digits than its factorization.

390795951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 382725, while the sum is 48.

The square root of 390795951 is about 19768.5596592164. The cubic root of 390795951 is about 731.1110566023. Note that the first 3 decimals are identical.

The spelling of 390795951 in words is "three hundred ninety million, seven hundred ninety-five thousand, nine hundred fifty-one".