722716140 has 24 divisors (see below), whose sum is σ = 2023605360. Its totient is φ = 192724288.

The previous prime is 722716117. The next prime is 722716147. The reversal of 722716140 is 41617227.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 722716098 and 722716107.

It is not an unprimeable number, because it can be changed into a prime (722716147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6022575 + ... + 6022694.

It is an arithmetic number, because the mean of its divisors is an integer number (84316890).

Almost surely, 2^722716140 is an apocalyptic number.

It is an amenable number.

722716140 is an abundant number, since it is smaller than the sum of its proper divisors (1300889220).

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

722716140 is a wasteful number, since it uses less digits than its factorization.

722716140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12045281 (or 12045279 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 722716140 is about 26883.3803678035. The cubic root of 722716140 is about 897.4065834392.

The spelling of 722716140 in words is "seven hundred twenty-two million, seven hundred sixteen thousand, one hundred forty".