722486272 has 44 divisors (see below), whose sum is σ = 1483379020. Its totient is φ = 351461376.

The previous prime is 722486263. The next prime is 722486291. The reversal of 722486272 is 272684227.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 693584896 + 28901376 = 26336^2 + 5376^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28354 + ... + 47422.

Almost surely, 2^722486272 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 722486272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (741689510).

722486272 is an abundant number, since it is smaller than the sum of its proper divisors (760892748).

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

722486272 is a wasteful number, since it uses less digits than its factorization.

722486272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19126 (or 19108 counting only the distinct ones).

The product of its digits is 150528, while the sum is 40.

The square root of 722486272 is about 26879.1047469963. The cubic root of 722486272 is about 897.3114299299.

The spelling of 722486272 in words is "seven hundred twenty-two million, four hundred eighty-six thousand, two hundred seventy-two".