722323404 has 144 divisors (see below), whose sum is σ = 2161295136. Its totient is φ = 200908800.

The previous prime is 722323391. The next prime is 722323409. The reversal of 722323404 is 404323227.

It is a super-2 number, since 2×722323404² = 1043502199932294432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (722323409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 274704 + ... + 277320.

It is an arithmetic number, because the mean of its divisors is an integer number (15008994).

Almost surely, 2^722323404 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 722323404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1080647568).

722323404 is an abundant number, since it is smaller than the sum of its proper divisors (1438971732).

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

722323404 is a wasteful number, since it uses less digits than its factorization.

722323404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696 (or 2691 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 722323404 is about 26876.0749366421. The cubic root of 722323404 is about 897.2439987521.

The spelling of 722323404 in words is "seven hundred twenty-two million, three hundred twenty-three thousand, four hundred four".