722153532 has 24 divisors (see below), whose sum is σ = 1696338000. Its totient is φ = 239101696.

The previous prime is 722153521. The next prime is 722153533. The reversal of 722153532 is 235351227.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 722153532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722153533) 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 7 ways as a sum of consecutive naturals, for example, 200157 + ... + 203732.

It is an arithmetic number, because the mean of its divisors is an integer number (70680750).

Almost surely, 2^722153532 is an apocalyptic number.

It is an amenable number.

722153532 is an abundant number, since it is smaller than the sum of its proper divisors (974184468).

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

722153532 is a wasteful number, since it uses less digits than its factorization.

722153532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404045 (or 404043 counting only the distinct ones).

The product of its digits is 12600, while the sum is 30.

The square root of 722153532 is about 26872.9144679173. The cubic root of 722153532 is about 897.1736569535.

The spelling of 722153532 in words is "seven hundred twenty-two million, one hundred fifty-three thousand, five hundred thirty-two".