723972426 has 32 divisors (see below), whose sum is σ = 1512898560. Its totient is φ = 230526384.

The previous prime is 723972367. The next prime is 723972433. The reversal of 723972426 is 624279327.

723972426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 116055 + ... + 122133.

It is an arithmetic number, because the mean of its divisors is an integer number (47278080).

Almost surely, 2^723972426 is an apocalyptic number.

723972426 is an abundant number, since it is smaller than the sum of its proper divisors (788926134).

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

723972426 is a wasteful number, since it uses less digits than its factorization.

723972426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6970.

The product of its digits is 254016, while the sum is 42.

The square root of 723972426 is about 26906.7356994489. The cubic root of 723972426 is about 897.9262649795.

The spelling of 723972426 in words is "seven hundred twenty-three million, nine hundred seventy-two thousand, four hundred twenty-six".