723945068 has 144 divisors (see below), whose sum is σ = 1769693184. Its totient is φ = 250836480.

The previous prime is 723945043. The next prime is 723945091. The reversal of 723945068 is 860549327.

It is a super-2 number, since 2×723945068² = 1048192922963049248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 1890005 + ... + 1890387.

It is an arithmetic number, because the mean of its divisors is an integer number (12289536).

Almost surely, 2^723945068 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 723945068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884846592).

723945068 is an abundant number, since it is smaller than the sum of its proper divisors (1045748116).

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

723945068 is a wasteful number, since it uses less digits than its factorization.

723945068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 723945068 is about 26906.2273089335. The cubic root of 723945068 is about 897.9149543387.

The spelling of 723945068 in words is "seven hundred twenty-three million, nine hundred forty-five thousand, sixty-eight".