724910940 has 144 divisors (see below), whose sum is σ = 2507476608. Its totient is φ = 167933952.

The previous prime is 724910911. The next prime is 724910969. The reversal of 724910940 is 49019427.

724910940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (724910911) and next prime (724910969).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 724910895 and 724910904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30669 + ... + 48891.

It is an arithmetic number, because the mean of its divisors is an integer number (17413032).

Almost surely, 2^724910940 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 724910940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1253738304).

724910940 is an abundant number, since it is smaller than the sum of its proper divisors (1782565668).

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

724910940 is a wasteful number, since it uses less digits than its factorization.

724910940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18268 (or 18263 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 724910940 is about 26924.1701821987. The cubic root of 724910940 is about 898.3141031777.

The spelling of 724910940 in words is "seven hundred twenty-four million, nine hundred ten thousand, nine hundred forty".