23019144 has 16 divisors (see below), whose sum is σ = 57547920. Its totient is φ = 7673040.

The previous prime is 23019133. The next prime is 23019169. The reversal of 23019144 is 44191032.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 959131 = 23019144 / (2 + 3 + 0 + 1 + 9 + 1 + 4 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479542 + ... + 479589.

It is an arithmetic number, because the mean of its divisors is an integer number (3596745).

Almost surely, 2^23019144 is an apocalyptic number.

23019144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23019144 is an abundant number, since it is smaller than the sum of its proper divisors (34528776).

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

23019144 is a wasteful number, since it uses less digits than its factorization.

23019144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959140 (or 959136 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 23019144 is about 4797.8270081361. The cubic root of 23019144 is about 284.4655789870.

The spelling of 23019144 in words is "twenty-three million, nineteen thousand, one hundred forty-four".