23042872 has 32 divisors (see below), whose sum is σ = 45845280. Its totient is φ = 10834560.

The previous prime is 23042869. The next prime is 23042881. The reversal of 23042872 is 27824032.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 23042872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10198 + ... + 12250.

It is an arithmetic number, because the mean of its divisors is an integer number (1432665).

Almost surely, 2^23042872 is an apocalyptic number.

It is an amenable number.

23042872 is a deficient number, since it is larger than the sum of its proper divisors (22802408).

23042872 is a wasteful number, since it uses less digits than its factorization.

23042872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143 (or 2139 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 23042872 is about 4800.2991573443. The cubic root of 23042872 is about 284.5632872448.

The spelling of 23042872 in words is "twenty-three million, forty-two thousand, eight hundred seventy-two".