724240634 has 16 divisors (see below), whose sum is σ = 1173412968. Its totient is φ = 333268992.

The previous prime is 724240633. The next prime is 724240639. The reversal of 724240634 is 436042427.

724240634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 455182225 + 269058409 = 21335^2 + 16403^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 724240634.

It is not an unprimeable number, because it can be changed into a prime (724240633) 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, 32567 + ... + 50090.

Almost surely, 2^724240634 is an apocalyptic number.

724240634 is a deficient number, since it is larger than the sum of its proper divisors (449172334).

724240634 is a wasteful number, since it uses less digits than its factorization.

724240634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83009.

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 724240634 is about 26911.7192687498. The cubic root of 724240634 is about 898.0371353502.

The spelling of 724240634 in words is "seven hundred twenty-four million, two hundred forty thousand, six hundred thirty-four".