18010944 has 112 divisors (see below), whose sum is σ = 60553600. Its totient is φ = 5142528.

The previous prime is 18010919. The next prime is 18010963. The reversal of 18010944 is 44901081.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×18010944² = 648788207542272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11352 + ... + 12840.

Almost surely, 2^18010944 is an apocalyptic number.

18010944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18010944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30276800).

18010944 is an abundant number, since it is smaller than the sum of its proper divisors (42542656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18010944 is a wasteful number, since it uses less digits than its factorization.

18010944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517 (or 1501 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 18010944 is about 4243.9302539038. The cubic root of 18010944 is about 262.1272423524.

The spelling of 18010944 in words is "eighteen million, ten thousand, nine hundred forty-four".