722435072 has 44 divisors (see below), whose sum is σ = 1460575440. Its totient is φ = 357113856.

The previous prime is 722435059. The next prime is 722435089. The reversal of 722435072 is 270534227.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 87173 + ... + 95099.

Almost surely, 2^722435072 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 722435072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (730287720).

722435072 is an abundant number, since it is smaller than the sum of its proper divisors (738140368).

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

722435072 is an equidigital number, since it uses as much as digits as its factorization.

722435072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8036 (or 8018 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 722435072 is about 26878.1523174492. The cubic root of 722435072 is about 897.2902330194.

Adding to 722435072 its reverse (270534227), we get a palindrome (992969299).

The spelling of 722435072 in words is "seven hundred twenty-two million, four hundred thirty-five thousand, seventy-two".