18413144 has 16 divisors (see below), whose sum is σ = 35715600. Its totient is φ = 8888992.

The previous prime is 18413137. The next prime is 18413149. The reversal of 18413144 is 44131481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18413149) 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, 39452 + ... + 39915.

It is an arithmetic number, because the mean of its divisors is an integer number (2232225).

Almost surely, 2^18413144 is an apocalyptic number.

It is an amenable number.

18413144 is a deficient number, since it is larger than the sum of its proper divisors (17302456).

18413144 is a wasteful number, since it uses less digits than its factorization.

18413144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79402 (or 79398 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 18413144 is about 4291.0539497890. The cubic root of 18413144 is about 264.0640722967.

The spelling of 18413144 in words is "eighteen million, four hundred thirteen thousand, one hundred forty-four".