724181252 has 12 divisors (see below), whose sum is σ = 1281557340. Its totient is φ = 358022016.

The previous prime is 724181239. The next prime is 724181261. The reversal of 724181252 is 252181427.

It can be written as a sum of positive squares in 2 ways, for example, as 398162116 + 326019136 = 19954^2 + 18056^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016753 + ... + 1017464.

It is an arithmetic number, because the mean of its divisors is an integer number (106796445).

Almost surely, 2^724181252 is an apocalyptic number.

It is an amenable number.

724181252 is a deficient number, since it is larger than the sum of its proper divisors (557376088).

724181252 is a wasteful number, since it uses less digits than its factorization.

724181252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034310 (or 2034308 counting only the distinct ones).

The product of its digits is 8960, while the sum is 32.

The square root of 724181252 is about 26910.6159721401. The cubic root of 724181252 is about 898.0125907002.

The spelling of 724181252 in words is "seven hundred twenty-four million, one hundred eighty-one thousand, two hundred fifty-two".