721062232 has 48 divisors (see below), whose sum is σ = 1534075200. Its totient is φ = 317169600.

The previous prime is 721062229. The next prime is 721062233. The reversal of 721062232 is 232260127.

721062232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 721062197 and 721062206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (721062233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17994 + ... + 42022.

It is an arithmetic number, because the mean of its divisors is an integer number (31959900).

Almost surely, 2^721062232 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 721062232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767037600).

721062232 is an abundant number, since it is smaller than the sum of its proper divisors (813012968).

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

721062232 is a wasteful number, since it uses less digits than its factorization.

721062232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24088 (or 24073 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 721062232 is about 26852.6019595867. The cubic root of 721062232 is about 896.7215004647.

The spelling of 721062232 in words is "seven hundred twenty-one million, sixty-two thousand, two hundred thirty-two".