395804433264 has 80 divisors (see below), whose sum is σ = 1065726265344. Its totient is φ = 126439200000.

The previous prime is 395804433251. The next prime is 395804433317. The reversal of 395804433264 is 462334408593.

It is a super-2 number, since 2×395804433264² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1137987 + ... + 1444514.

Almost surely, 2^395804433264 is an apocalyptic number.

It is an amenable number.

395804433264 is an abundant number, since it is smaller than the sum of its proper divisors (669921832080).

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

395804433264 is a wasteful number, since it uses less digits than its factorization.

395804433264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582646 (or 2582640 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 51.

The spelling of 395804433264 in words is "three hundred ninety-five billion, eight hundred four million, four hundred thirty-three thousand, two hundred sixty-four".