722544020 has 48 divisors (see below), whose sum is σ = 1658276928. Its totient is φ = 262268160.

The previous prime is 722543977. The next prime is 722544079. The reversal of 722544020 is 20445227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133079 + ... + 138401.

It is an arithmetic number, because the mean of its divisors is an integer number (34547436).

Almost surely, 2^722544020 is an apocalyptic number.

It is an amenable number.

722544020 is an abundant number, since it is smaller than the sum of its proper divisors (935732908).

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

722544020 is a wasteful number, since it uses less digits than its factorization.

722544020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5960 (or 5958 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 722544020 is about 26880.1789428568. The cubic root of 722544020 is about 897.3353365248.

Adding to 722544020 its reverse (20445227), we get a palindrome (742989247).

The spelling of 722544020 in words is "seven hundred twenty-two million, five hundred forty-four thousand, twenty".