18401044 has 12 divisors (see below), whose sum is σ = 33896800. Its totient is φ = 8716248.

The previous prime is 18401041. The next prime is 18401057. The reversal of 18401044 is 44010481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18401041) 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, 120984 + ... + 121135.

Almost surely, 2^18401044 is an apocalyptic number.

It is an amenable number.

18401044 is a deficient number, since it is larger than the sum of its proper divisors (15495756).

18401044 is a wasteful number, since it uses less digits than its factorization.

18401044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242142 (or 242140 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 18401044 is about 4289.6438080568. The cubic root of 18401044 is about 264.0062173314.

The spelling of 18401044 in words is "eighteen million, four hundred one thousand, forty-four".