722426208 has 288 divisors, whose sum is σ = 2378678400. Its totient is φ = 190826496.

The previous prime is 722426153. The next prime is 722426239. The reversal of 722426208 is 802624227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5273116 + ... + 5273252.

It is an arithmetic number, because the mean of its divisors is an integer number (8259300).

Almost surely, 2^722426208 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 722426208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1189339200).

722426208 is an abundant number, since it is smaller than the sum of its proper divisors (1656252192).

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

722426208 is a wasteful number, since it uses less digits than its factorization.

722426208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 722426208 is about 26877.9874246566. The cubic root of 722426208 is about 897.2865632026.

The spelling of 722426208 in words is "seven hundred twenty-two million, four hundred twenty-six thousand, two hundred eight".