764116240 has 40 divisors (see below), whose sum is σ = 1803098880. Its totient is φ = 301082496.

The previous prime is 764116231. The next prime is 764116247. The reversal of 764116240 is 42611467.

764116240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (764116247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65920 + ... + 76639.

It is an arithmetic number, because the mean of its divisors is an integer number (45077472).

Almost surely, 2^764116240 is an apocalyptic number.

It is an amenable number.

764116240 is an abundant number, since it is smaller than the sum of its proper divisors (1038982640).

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

764116240 is a wasteful number, since it uses less digits than its factorization.

764116240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142639 (or 142633 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 764116240 is about 27642.6525499996. The cubic root of 764116240 is about 914.2251056363.

The spelling of 764116240 in words is "seven hundred sixty-four million, one hundred sixteen thousand, two hundred forty".