390885672 has 32 divisors (see below), whose sum is σ = 990982080. Its totient is φ = 128459520.

The previous prime is 390885661. The next prime is 390885673. The reversal of 390885672 is 276588093.

It is not an unprimeable number, because it can be changed into a prime (390885673) 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, 112993 + ... + 116400.

It is an arithmetic number, because the mean of its divisors is an integer number (30968190).

Almost surely, 2^390885672 is an apocalyptic number.

It is an amenable number.

390885672 is an abundant number, since it is smaller than the sum of its proper divisors (600096408).

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

390885672 is a wasteful number, since it uses less digits than its factorization.

390885672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229473 (or 229469 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 390885672 is about 19770.8288141899. The cubic root of 390885672 is about 731.1670031012.

The spelling of 390885672 in words is "three hundred ninety million, eight hundred eighty-five thousand, six hundred seventy-two".