722394 has 24 divisors (see below), whose sum is σ = 1591200. Its totient is φ = 236808.

The previous prime is 722389. The next prime is 722411. The reversal of 722394 is 493227.

722394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 907 + ... + 1505.

It is an arithmetic number, because the mean of its divisors is an integer number (66300).

2⁷²²³⁹⁴ is an apocalyptic number.

722394 is an abundant number, since it is smaller than the sum of its proper divisors (868806).

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

722394 is a wasteful number, since it uses less digits than its factorization.

722394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 671 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 722394 is about 849.9376447717. The cubic root of 722394 is about 89.7273228399.

The spelling of 722394 in words is "seven hundred twenty-two thousand, three hundred ninety-four".