764282280 has 128 divisors (see below), whose sum is σ = 2334355200. Its totient is φ = 200159232.

The previous prime is 764282279. The next prime is 764282297. The reversal of 764282280 is 82282467.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2128741 + ... + 2129099.

It is an arithmetic number, because the mean of its divisors is an integer number (18237150).

Almost surely, 2^764282280 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 764282280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1167177600).

764282280 is an abundant number, since it is smaller than the sum of its proper divisors (1570072920).

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

764282280 is a wasteful number, since it uses less digits than its factorization.

764282280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 764282280 is about 27645.6557165859. The cubic root of 764282280 is about 914.2913202316.

The spelling of 764282280 in words is "seven hundred sixty-four million, two hundred eighty-two thousand, two hundred eighty".