395728764 has 48 divisors (see below), whose sum is σ = 978948096. Its totient is φ = 124200000.

The previous prime is 395728741. The next prime is 395728783. The reversal of 395728764 is 467827593.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612 + ... + 28139.

It is an arithmetic number, because the mean of its divisors is an integer number (20394752).

Almost surely, 2^395728764 is an apocalyptic number.

It is an amenable number.

395728764 is an abundant number, since it is smaller than the sum of its proper divisors (583219332).

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

395728764 is a wasteful number, since it uses less digits than its factorization.

395728764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28826 (or 28824 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The square root of 395728764 is about 19892.9325138352. The cubic root of 395728764 is about 734.1743479794.

The spelling of 395728764 in words is "three hundred ninety-five million, seven hundred twenty-eight thousand, seven hundred sixty-four".