722739024 has 300 divisors, whose sum is σ = 2565684000. Its totient is φ = 195302016.

The previous prime is 722739023. The next prime is 722739067. The reversal of 722739024 is 420937227.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 722739024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722739023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1206277 + ... + 1206875.

It is an arithmetic number, because the mean of its divisors is an integer number (8552280).

Almost surely, 2^722739024 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 722739024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1282842000).

722739024 is an abundant number, since it is smaller than the sum of its proper divisors (1842944976).

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

722739024 is a wasteful number, since it uses less digits than its factorization.

722739024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 722739024 is about 26883.8059805527. The cubic root of 722739024 is about 897.4160551319.

The spelling of 722739024 in words is "seven hundred twenty-two million, seven hundred thirty-nine thousand, twenty-four".