724769424 has 40 divisors (see below), whose sum is σ = 2080357920. Its totient is φ = 241589664.

The previous prime is 724769417. The next prime is 724769443. The reversal of 724769424 is 424967427.

724769424 is a `hidden beast` number, since 72 + 476 + 94 + 24 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 724769424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838422 + ... + 839285.

It is an arithmetic number, because the mean of its divisors is an integer number (52008948).

Almost surely, 2^724769424 is an apocalyptic number.

It is an amenable number.

724769424 is an abundant number, since it is smaller than the sum of its proper divisors (1355588496).

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

724769424 is a wasteful number, since it uses less digits than its factorization.

724769424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677724 (or 1677712 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 724769424 is about 26921.5420063562. The cubic root of 724769424 is about 898.2556435404.

The spelling of 724769424 in words is "seven hundred twenty-four million, seven hundred sixty-nine thousand, four hundred twenty-four".