722733140 has 48 divisors (see below), whose sum is σ = 1606106880. Its totient is φ = 272616960.

The previous prime is 722733139. The next prime is 722733203. The reversal of 722733140 is 41337227.

It is a congruent number.

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, 21596 + ... + 43724.

It is an arithmetic number, because the mean of its divisors is an integer number (33460560).

Almost surely, 2^722733140 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 722733140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803053440).

722733140 is an abundant number, since it is smaller than the sum of its proper divisors (883373740).

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

722733140 is a wasteful number, since it uses less digits than its factorization.

722733140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22232 (or 22230 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 722733140 is about 26883.6965464201. The cubic root of 722733140 is about 897.4136197621.

The spelling of 722733140 in words is "seven hundred twenty-two million, seven hundred thirty-three thousand, one hundred forty".