390650064 has 40 divisors (see below), whose sum is σ = 1153348800. Its totient is φ = 111614208.

The previous prime is 390650047. The next prime is 390650111. The reversal of 390650064 is 460056093.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 580989 + ... + 581660.

It is an arithmetic number, because the mean of its divisors is an integer number (28833720).

Almost surely, 2^390650064 is an apocalyptic number.

It is an amenable number.

390650064 is an abundant number, since it is smaller than the sum of its proper divisors (762698736).

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

390650064 is a wasteful number, since it uses less digits than its factorization.

390650064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162667 (or 1162661 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 390650064 is about 19764.8694404997. The cubic root of 390650064 is about 731.0200689027.

The spelling of 390650064 in words is "three hundred ninety million, six hundred fifty thousand, sixty-four".