390972195 has 12 divisors (see below), whose sum is σ = 677685216. Its totient is φ = 208518480.

The previous prime is 390972191. The next prime is 390972199. The reversal of 390972195 is 591279093.

It is a happy number.

390972195 is a `hidden beast` number, since 390 + 9 + 72 + 195 = 666.

It is an interprime number because it is at equal distance from previous prime (390972191) and next prime (390972199).

It is not a de Polignac number, because 390972195 - 2² = 390972191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 8688271 = 390972195 / (3 + 9 + 0 + 9 + 7 + 2 + 1 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 390972195.

It is not an unprimeable number, because it can be changed into a prime (390972191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4344091 + ... + 4344180.

It is an arithmetic number, because the mean of its divisors is an integer number (56473768).

Almost surely, 2^390972195 is an apocalyptic number.

390972195 is a deficient number, since it is larger than the sum of its proper divisors (286713021).

390972195 is a wasteful number, since it uses less digits than its factorization.

390972195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8688282 (or 8688279 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 390972195 is about 19773.0168411398. The cubic root of 390972195 is about 731.2209473445.

The spelling of 390972195 in words is "three hundred ninety million, nine hundred seventy-two thousand, one hundred ninety-five".