390445248 has 56 divisors (see below), whose sum is σ = 1066393600. Its totient is φ = 125948160.

The previous prime is 390445207. The next prime is 390445249. The reversal of 390445248 is 842544093.

It is not an unprimeable number, because it can be changed into a prime (390445249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26848 + ... + 38751.

Almost surely, 2^390445248 is an apocalyptic number.

It is an amenable number.

390445248 is an abundant number, since it is smaller than the sum of its proper divisors (675948352).

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

390445248 is a wasteful number, since it uses less digits than its factorization.

390445248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65645 (or 65635 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 390445248 is about 19759.6874469208. The cubic root of 390445248 is about 730.8922897686.

The spelling of 390445248 in words is "three hundred ninety million, four hundred forty-five thousand, two hundred forty-eight".