723542568 has 32 divisors (see below), whose sum is σ = 2067264960. Its totient is φ = 206726400.

The previous prime is 723542557. The next prime is 723542569. The reversal of 723542568 is 865245327.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (723542569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153233 + ... + 2153568.

It is an arithmetic number, because the mean of its divisors is an integer number (64602030).

Almost surely, 2^723542568 is an apocalyptic number.

It is an amenable number.

723542568 is an abundant number, since it is smaller than the sum of its proper divisors (1343722392).

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

723542568 is a wasteful number, since it uses less digits than its factorization.

723542568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306817 (or 4306813 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 723542568 is about 26898.7465878988. The cubic root of 723542568 is about 897.7485154816.

The spelling of 723542568 in words is "seven hundred twenty-three million, five hundred forty-two thousand, five hundred sixty-eight".