764356404 has 48 divisors (see below), whose sum is σ = 2040933888. Its totient is φ = 218103648.

The previous prime is 764356403. The next prime is 764356409. The reversal of 764356404 is 404653467.

It is a happy number.

It is a super-2 number, since 2×764356404² = 1168481424671622432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764356403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63967 + ... + 74969.

It is an arithmetic number, because the mean of its divisors is an integer number (42519456).

Almost surely, 2^764356404 is an apocalyptic number.

It is an amenable number.

764356404 is an abundant number, since it is smaller than the sum of its proper divisors (1276577484).

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

764356404 is a wasteful number, since it uses less digits than its factorization.

764356404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11844 (or 11842 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

The square root of 764356404 is about 27646.9962925451. The cubic root of 764356404 is about 914.3208768238.

The spelling of 764356404 in words is "seven hundred sixty-four million, three hundred fifty-six thousand, four hundred four".