18744192 has 96 divisors (see below), whose sum is σ = 55135080. Its totient is φ = 6110208.

The previous prime is 18744157. The next prime is 18744221. The reversal of 18744192 is 29144781.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60903 + ... + 61209.

Almost surely, 2^18744192 is an apocalyptic number.

18744192 is a gapful number since it is divisible by the number (12) 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 18744192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27567540).

18744192 is an abundant number, since it is smaller than the sum of its proper divisors (36390888).

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

18744192 is a wasteful number, since it uses less digits than its factorization.

18744192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 365 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 18744192 is about 4329.4563169063. The cubic root of 18744192 is about 265.6372087030.

The spelling of 18744192 in words is "eighteen million, seven hundred forty-four thousand, one hundred ninety-two".