390875650 has 24 divisors (see below), whose sum is σ = 793123344. Its totient is φ = 142136400.

The previous prime is 390875623. The next prime is 390875651. The reversal of 390875650 is 56578093.

It is a junction number, because it is equal to n+sod(n) for n = 390875597 and 390875606.

It is not an unprimeable number, because it can be changed into a prime (390875651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 354792 + ... + 355891.

It is an arithmetic number, because the mean of its divisors is an integer number (33046806).

Almost surely, 2^390875650 is an apocalyptic number.

390875650 is an abundant number, since it is smaller than the sum of its proper divisors (402247694).

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

390875650 is a wasteful number, since it uses less digits than its factorization.

390875650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710706 (or 710701 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 390875650 is about 19770.5753583450. The cubic root of 390875650 is about 731.1607541996.

The spelling of 390875650 in words is "three hundred ninety million, eight hundred seventy-five thousand, six hundred fifty".