724642772 has 36 divisors (see below), whose sum is σ = 1476810720. Its totient is φ = 310215024.

The previous prime is 724642769. The next prime is 724642777. The reversal of 724642772 is 277246427.

724642772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724642777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257123 + ... + 259925.

It is an arithmetic number, because the mean of its divisors is an integer number (41022520).

Almost surely, 2^724642772 is an apocalyptic number.

It is an amenable number.

724642772 is an abundant number, since it is smaller than the sum of its proper divisors (752167948).

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

724642772 is a wasteful number, since it uses less digits than its factorization.

724642772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4140 (or 4131 counting only the distinct ones).

The product of its digits is 263424, while the sum is 41.

The square root of 724642772 is about 26919.1896609092. The cubic root of 724642772 is about 898.2033177029.

The spelling of 724642772 in words is "seven hundred twenty-four million, six hundred forty-two thousand, seven hundred seventy-two".