764304432 has 20 divisors (see below), whose sum is σ = 1974453240. Its totient is φ = 254768128.

The previous prime is 764304397. The next prime is 764304439. The reversal of 764304432 is 234403467.

It is a super-2 number, since 2×764304432² = 1168322529549685248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 764304393 and 764304402.

It is not an unprimeable number, because it can be changed into a prime (764304439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7961457 + ... + 7961552.

It is an arithmetic number, because the mean of its divisors is an integer number (98722662).

Almost surely, 2^764304432 is an apocalyptic number.

It is an amenable number.

764304432 is an abundant number, since it is smaller than the sum of its proper divisors (1210148808).

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

764304432 is a wasteful number, since it uses less digits than its factorization.

764304432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15923020 (or 15923014 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 33.

The square root of 764304432 is about 27646.0563552923. The cubic root of 764304432 is about 914.3001534364.

Adding to 764304432 its reverse (234403467), we get a palindrome (998707899).

The spelling of 764304432 in words is "seven hundred sixty-four million, three hundred four thousand, four hundred thirty-two".