764140436 has 12 divisors (see below), whose sum is σ = 1337874720. Its totient is φ = 381890520.

The previous prime is 764140409. The next prime is 764140453. The reversal of 764140436 is 634041467.

It is a junction number, because it is equal to n+sod(n) for n = 764140396 and 764140405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35120 + ... + 52551.

It is an arithmetic number, because the mean of its divisors is an integer number (111489560).

Almost surely, 2^764140436 is an apocalyptic number.

It is an amenable number.

764140436 is a deficient number, since it is larger than the sum of its proper divisors (573734284).

764140436 is a wasteful number, since it uses less digits than its factorization.

764140436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89854 (or 89852 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 764140436 is about 27643.0902035210. The cubic root of 764140436 is about 914.2347552839.

The spelling of 764140436 in words is "seven hundred sixty-four million, one hundred forty thousand, four hundred thirty-six".