18119172 has 24 divisors (see below), whose sum is σ = 42371392. Its totient is φ = 6026400.

The previous prime is 18119117. The next prime is 18119177. The reversal of 18119172 is 27191181.

It is not an unprimeable number, because it can be changed into a prime (18119177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5097 + ... + 7887.

Almost surely, 2^18119172 is an apocalyptic number.

18119172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18119172 is an abundant number, since it is smaller than the sum of its proper divisors (24252220).

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

18119172 is a wasteful number, since it uses less digits than its factorization.

18119172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339 (or 3337 counting only the distinct ones).

The product of its digits is 1008, while the sum is 30.

The square root of 18119172 is about 4256.6620725634. The cubic root of 18119172 is about 262.6512362064.

The spelling of 18119172 in words is "eighteen million, one hundred nineteen thousand, one hundred seventy-two".