722285772 has 48 divisors (see below), whose sum is σ = 1821544032. Its totient is φ = 221437440.

The previous prime is 722285723. The next prime is 722285797. The reversal of 722285772 is 277582227.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35598 + ... + 52074.

It is an arithmetic number, because the mean of its divisors is an integer number (37948834).

Almost surely, 2^722285772 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 722285772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (910772016).

722285772 is an abundant number, since it is smaller than the sum of its proper divisors (1099258260).

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

722285772 is a wasteful number, since it uses less digits than its factorization.

722285772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16778 (or 16776 counting only the distinct ones).

The product of its digits is 219520, while the sum is 42.

The square root of 722285772 is about 26875.3748252931. The cubic root of 722285772 is about 897.2284167785.

The spelling of 722285772 in words is "seven hundred twenty-two million, two hundred eighty-five thousand, seven hundred seventy-two".