23043138 has 8 divisors (see below), whose sum is σ = 46086288. Its totient is φ = 7681044.

The previous prime is 23043103. The next prime is 23043149. The reversal of 23043138 is 83134032.

It is a sphenic number, since it is the product of 3 distinct primes.

23043138 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1920256 + ... + 1920267.

It is an arithmetic number, because the mean of its divisors is an integer number (5760786).

Almost surely, 2^23043138 is an apocalyptic number.

23043138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23043138 is a wasteful number, since it uses less digits than its factorization.

23043138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840528.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 23043138 is about 4800.3268638708. The cubic root of 23043138 is about 284.5643822116.

The spelling of 23043138 in words is "twenty-three million, forty-three thousand, one hundred thirty-eight".