722825280 has 168 divisors, whose sum is σ = 2496312000. Its totient is φ = 191972352.

The previous prime is 722825249. The next prime is 722825317. The reversal of 722825280 is 82528227.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1206421 + ... + 1207019.

It is an arithmetic number, because the mean of its divisors is an integer number (14859000).

Almost surely, 2^722825280 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 722825280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1248156000).

722825280 is an abundant number, since it is smaller than the sum of its proper divisors (1773486720).

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

722825280 is a wasteful number, since it uses less digits than its factorization.

722825280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 722825280 is about 26885.4101698300. The cubic root of 722825280 is about 897.4517547124.

The spelling of 722825280 in words is "seven hundred twenty-two million, eight hundred twenty-five thousand, two hundred eighty".