390249192 has 32 divisors (see below), whose sum is σ = 976147200. Its totient is φ = 130013184.

The previous prime is 390249191. The next prime is 390249217. The reversal of 390249192 is 291942093.

It is a self number, because there is not a number n which added to its sum of digits gives 390249192.

It is not an unprimeable number, because it can be changed into a prime (390249191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61513 + ... + 67559.

It is an arithmetic number, because the mean of its divisors is an integer number (30504600).

Almost surely, 2^390249192 is an apocalyptic number.

It is an amenable number.

390249192 is an abundant number, since it is smaller than the sum of its proper divisors (585898008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390249192 is a wasteful number, since it uses less digits than its factorization.

390249192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8745 (or 8741 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 390249192 is about 19754.7258143463. The cubic root of 390249192 is about 730.7699338935.

The spelling of 390249192 in words is "three hundred ninety million, two hundred forty-nine thousand, one hundred ninety-two".