722958336 has 144 divisors (see below), whose sum is σ = 2125567080. Its totient is φ = 236666880.

The previous prime is 722958259. The next prime is 722958343. The reversal of 722958336 is 633859227.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 722958291 and 722958300.

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, 1124031 + ... + 1124673.

Almost surely, 2^722958336 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 722958336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1062783540).

722958336 is an abundant number, since it is smaller than the sum of its proper divisors (1402608744).

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

722958336 is a wasteful number, since it uses less digits than its factorization.

722958336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732 (or 709 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 722958336 is about 26887.8845579194. The cubic root of 722958336 is about 897.5068182793.

The spelling of 722958336 in words is "seven hundred twenty-two million, nine hundred fifty-eight thousand, three hundred thirty-six".