18541144 has 16 divisors (see below), whose sum is σ = 35704800. Its totient is φ = 9019872.

The previous prime is 18541141. The next prime is 18541147. The reversal of 18541144 is 44114581.

It is an interprime number because it is at equal distance from previous prime (18541141) and next prime (18541147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18541141) 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, 31024 + ... + 31615.

It is an arithmetic number, because the mean of its divisors is an integer number (2231550).

Almost surely, 2^18541144 is an apocalyptic number.

It is an amenable number.

18541144 is a deficient number, since it is larger than the sum of its proper divisors (17163656).

18541144 is a wasteful number, since it uses less digits than its factorization.

18541144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62682 (or 62678 counting only the distinct ones).

The product of its digits is 2560, while the sum is 28.

The square root of 18541144 is about 4305.9428700344. The cubic root of 18541144 is about 264.6745452828.

The spelling of 18541144 in words is "eighteen million, five hundred forty-one thousand, one hundred forty-four".