390249198 has 32 divisors (see below), whose sum is σ = 868528800. Its totient is φ = 129886848.

The previous prime is 390249191. The next prime is 390249217. The reversal of 390249198 is 891942093.

390249198 is a `hidden beast` number, since 390 + 249 + 19 + 8 = 666.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33190 + ... + 43382.

It is an arithmetic number, because the mean of its divisors is an integer number (27141525).

Almost surely, 2^390249198 is an apocalyptic number.

390249198 is an abundant number, since it is smaller than the sum of its proper divisors (478279602).

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

390249198 is a wasteful number, since it uses less digits than its factorization.

390249198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10913 (or 10907 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 390249198 is about 19754.7259662087. The cubic root of 390249198 is about 730.7699376386.

The spelling of 390249198 in words is "three hundred ninety million, two hundred forty-nine thousand, one hundred ninety-eight".