724479660 has 96 divisors (see below), whose sum is σ = 2258887680. Its totient is φ = 192770496.

The previous prime is 724479611. The next prime is 724479673. The reversal of 724479660 is 66974427.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302829 + ... + 305211.

It is an arithmetic number, because the mean of its divisors is an integer number (23530080).

Almost surely, 2^724479660 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 724479660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1129443840).

724479660 is an abundant number, since it is smaller than the sum of its proper divisors (1534408020).

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

724479660 is a wasteful number, since it uses less digits than its factorization.

724479660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964 (or 2956 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 724479660 is about 26916.1598301095. The cubic root of 724479660 is about 898.1359195590.

The spelling of 724479660 in words is "seven hundred twenty-four million, four hundred seventy-nine thousand, six hundred sixty".