722414728 has 64 divisors (see below), whose sum is σ = 1710408960. Its totient is φ = 278716416.

The previous prime is 722414723. The next prime is 722414743. The reversal of 722414728 is 827414227.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (722414723) 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 15 ways as a sum of consecutive naturals, for example, 5400 + ... + 38392.

It is an arithmetic number, because the mean of its divisors is an integer number (26725140).

Almost surely, 2^722414728 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 722414728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (855204480).

722414728 is an abundant number, since it is smaller than the sum of its proper divisors (987994232).

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

722414728 is a wasteful number, since it uses less digits than its factorization.

722414728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33046 (or 33042 counting only the distinct ones).

The product of its digits is 50176, while the sum is 37.

The square root of 722414728 is about 26877.7738661519. The cubic root of 722414728 is about 897.2818102815.

It can be divided in two parts, 7224 and 14728, that added together give a cube (21952 = 28³).

The spelling of 722414728 in words is "seven hundred twenty-two million, four hundred fourteen thousand, seven hundred twenty-eight".