18623044 has 12 divisors (see below), whose sum is σ = 35553168. Its totient is φ = 8465000.

The previous prime is 18623039. The next prime is 18623047. The reversal of 18623044 is 44032681.

It is not an unprimeable number, because it can be changed into a prime (18623047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211582 + ... + 211669.

It is an arithmetic number, because the mean of its divisors is an integer number (2962764).

Almost surely, 2^18623044 is an apocalyptic number.

It is an amenable number.

18623044 is a deficient number, since it is larger than the sum of its proper divisors (16930124).

18623044 is a wasteful number, since it uses less digits than its factorization.

18623044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423266 (or 423264 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 18623044 is about 4315.4425033825. The cubic root of 18623044 is about 265.0636799616.

The spelling of 18623044 in words is "eighteen million, six hundred twenty-three thousand, forty-four".