723670940 has 12 divisors (see below), whose sum is σ = 1519709016. Its totient is φ = 289468368.

The previous prime is 723670907. The next prime is 723670949. The reversal of 723670940 is 49076327.

723670940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 723670894 and 723670903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723670949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18091754 + ... + 18091793.

It is an arithmetic number, because the mean of its divisors is an integer number (126642418).

Almost surely, 2^723670940 is an apocalyptic number.

It is an amenable number.

723670940 is an abundant number, since it is smaller than the sum of its proper divisors (796038076).

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

723670940 is a wasteful number, since it uses less digits than its factorization.

723670940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36183556 (or 36183554 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 723670940 is about 26901.1326899073. The cubic root of 723670940 is about 897.8016056348.

The spelling of 723670940 in words is "seven hundred twenty-three million, six hundred seventy thousand, nine hundred forty".