724488420 has 48 divisors (see below), whose sum is σ = 2058856128. Its totient is φ = 190312320.

The previous prime is 724488377. The next prime is 724488437. The reversal of 724488420 is 24884427.

724488420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86091 + ... + 94130.

It is an arithmetic number, because the mean of its divisors is an integer number (42892836).

Almost surely, 2^724488420 is an apocalyptic number.

It is an amenable number.

724488420 is an abundant number, since it is smaller than the sum of its proper divisors (1334367708).

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

724488420 is a wasteful number, since it uses less digits than its factorization.

724488420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180300 (or 180298 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 39.

The square root of 724488420 is about 26916.3225571399. The cubic root of 724488420 is about 898.1395394623.

The spelling of 724488420 in words is "seven hundred twenty-four million, four hundred eighty-eight thousand, four hundred twenty".