721935248 has 40 divisors (see below), whose sum is σ = 1488967200. Its totient is φ = 338114304.

The previous prime is 721935241. The next prime is 721935287. The reversal of 721935248 is 842539127.

721935248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (721935241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13715 + ... + 40397.

It is an arithmetic number, because the mean of its divisors is an integer number (37224180).

Almost surely, 2^721935248 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 721935248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (744483600).

721935248 is an abundant number, since it is smaller than the sum of its proper divisors (767031952).

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

721935248 is a wasteful number, since it uses less digits than its factorization.

721935248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26799 (or 26793 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 721935248 is about 26868.8527481171. The cubic root of 721935248 is about 897.0832521752.

The spelling of 721935248 in words is "seven hundred twenty-one million, nine hundred thirty-five thousand, two hundred forty-eight".