764308480 has 88 divisors (see below), whose sum is σ = 1974650832. Its totient is φ = 282181632.

The previous prime is 764308477. The next prime is 764308483. The reversal of 764308480 is 84803467.

It is an interprime number because it is at equal distance from previous prime (764308477) and next prime (764308483).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (764308483) 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, 60819 + ... + 72301.

It is an arithmetic number, because the mean of its divisors is an integer number (22439214).

Almost surely, 2^764308480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 764308480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (987325416).

764308480 is an abundant number, since it is smaller than the sum of its proper divisors (1210342352).

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

764308480 is a wasteful number, since it uses less digits than its factorization.

764308480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11521 (or 11503 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 764308480 is about 27646.1295663606. The cubic root of 764308480 is about 914.3017675753.

The spelling of 764308480 in words is "seven hundred sixty-four million, three hundred eight thousand, four hundred eighty".