764320236 has 12 divisors (see below), whose sum is σ = 1783413912. Its totient is φ = 254773408.

The previous prime is 764320223. The next prime is 764320253. The reversal of 764320236 is 632023467.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 764320197 and 764320206.

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, 31846665 + ... + 31846688.

It is an arithmetic number, because the mean of its divisors is an integer number (148617826).

Almost surely, 2^764320236 is an apocalyptic number.

It is an amenable number.

764320236 is an abundant number, since it is smaller than the sum of its proper divisors (1019093676).

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

764320236 is a wasteful number, since it uses less digits than its factorization.

764320236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63693360 (or 63693358 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 764320236 is about 27646.3421812000. The cubic root of 764320236 is about 914.3064552447.

The spelling of 764320236 in words is "seven hundred sixty-four million, three hundred twenty thousand, two hundred thirty-six".