722276724 has 24 divisors (see below), whose sum is σ = 1814952160. Its totient is φ = 222238944.

The previous prime is 722276629. The next prime is 722276729. The reversal of 722276724 is 427672227.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722276729) 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, 2314834 + ... + 2315145.

Almost surely, 2^722276724 is an apocalyptic number.

It is an amenable number.

722276724 is an abundant number, since it is smaller than the sum of its proper divisors (1092675436).

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

722276724 is a wasteful number, since it uses less digits than its factorization.

722276724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629999 (or 4629997 counting only the distinct ones).

The product of its digits is 131712, while the sum is 39.

The square root of 722276724 is about 26875.2064922300. The cubic root of 722276724 is about 897.2246702667.

The spelling of 722276724 in words is "seven hundred twenty-two million, two hundred seventy-six thousand, seven hundred twenty-four".