764040216 has 32 divisors (see below), whose sum is σ = 1911124800. Its totient is φ = 254543520.

The previous prime is 764040203. The next prime is 764040227. The reversal of 764040216 is 612040467.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43675 + ... + 58613.

It is an arithmetic number, because the mean of its divisors is an integer number (59722650).

Almost surely, 2^764040216 is an apocalyptic number.

It is an amenable number.

764040216 is an abundant number, since it is smaller than the sum of its proper divisors (1147084584).

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

764040216 is a wasteful number, since it uses less digits than its factorization.

764040216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17079 (or 17075 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 764040216 is about 27641.2773945055. The cubic root of 764040216 is about 914.1947850512.

The spelling of 764040216 in words is "seven hundred sixty-four million, forty thousand, two hundred sixteen".