722538318 has 32 divisors (see below), whose sum is σ = 1552932864. Its totient is φ = 223293312.

The previous prime is 722538283. The next prime is 722538319. The reversal of 722538318 is 813835227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722538319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46030 + ... + 59697.

It is an arithmetic number, because the mean of its divisors is an integer number (48529152).

Almost surely, 2^722538318 is an apocalyptic number.

722538318 is an abundant number, since it is smaller than the sum of its proper divisors (830394546).

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

722538318 is a wasteful number, since it uses less digits than its factorization.

722538318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105816.

The product of its digits is 80640, while the sum is 39.

The square root of 722538318 is about 26880.0728793655. The cubic root of 722538318 is about 897.3329760599.

The spelling of 722538318 in words is "seven hundred twenty-two million, five hundred thirty-eight thousand, three hundred eighteen".