18698044 has 12 divisors (see below), whose sum is σ = 33276600. Its totient is φ = 9190448.

The previous prime is 18698041. The next prime is 18698047. The reversal of 18698044 is 44089681.

It is an interprime number because it is at equal distance from previous prime (18698041) and next prime (18698047).

It is a junction number, because it is equal to n+sod(n) for n = 18697988 and 18698006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18698041) 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, 39379 + ... + 39850.

It is an arithmetic number, because the mean of its divisors is an integer number (2773050).

Almost surely, 2^18698044 is an apocalyptic number.

It is an amenable number.

18698044 is a deficient number, since it is larger than the sum of its proper divisors (14578556).

18698044 is a wasteful number, since it uses less digits than its factorization.

18698044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79292 (or 79290 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 18698044 is about 4324.1234949987. The cubic root of 18698044 is about 265.4190308999.

The spelling of 18698044 in words is "eighteen million, six hundred ninety-eight thousand, forty-four".