722270432 has 192 divisors, whose sum is σ = 1728324864. Its totient is φ = 293928960.

The previous prime is 722270431. The next prime is 722270447. The reversal of 722270432 is 234072227.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 722270395 and 722270404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722270431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13627718 + ... + 13627770.

It is an arithmetic number, because the mean of its divisors is an integer number (9001692).

Almost surely, 2^722270432 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 722270432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864162432).

722270432 is an abundant number, since it is smaller than the sum of its proper divisors (1006054432).

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

722270432 is a wasteful number, since it uses less digits than its factorization.

722270432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 722270432 is about 26875.0894324093. The cubic root of 722270432 is about 897.2220649153. Note that the first 3 decimals are identical.

The spelling of 722270432 in words is "seven hundred twenty-two million, two hundred seventy thousand, four hundred thirty-two".