390955236857264 has 40 divisors (see below), whose sum is σ = 764341054668048. Its totient is φ = 193710930140160.

The previous prime is 390955236857233. The next prime is 390955236857287. The reversal of 390955236857264 is 462758632559093.

It is a happy number.

It is a super-2 number, since 2×390955236857264² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 390955236857191 and 390955236857200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154926557 + ... + 157429820.

Almost surely, 2^{390955236857264} is an apocalyptic number.

It is an amenable number.

390955236857264 is a deficient number, since it is larger than the sum of its proper divisors (373385817810784).

390955236857264 is a wasteful number, since it uses less digits than its factorization.

390955236857264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312357093 (or 312357087 counting only the distinct ones).

The product of its (nonzero) digits is 2939328000, while the sum is 74.

The spelling of 390955236857264 in words is "three hundred ninety trillion, nine hundred fifty-five billion, two hundred thirty-six million, eight hundred fifty-seven thousand, two hundred sixty-four".