18429168 has 20 divisors (see below), whose sum is σ = 47608808. Its totient is φ = 6143040.

The previous prime is 18429161. The next prime is 18429193. The reversal of 18429168 is 86192481.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18429161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191923 + ... + 192018.

Almost surely, 2^18429168 is an apocalyptic number.

It is an amenable number.

18429168 is an abundant number, since it is smaller than the sum of its proper divisors (29179640).

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

18429168 is a wasteful number, since it uses less digits than its factorization.

18429168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383952 (or 383946 counting only the distinct ones).

The product of its digits is 27648, while the sum is 39.

The square root of 18429168 is about 4292.9206841031. The cubic root of 18429168 is about 264.1406504889.

The spelling of 18429168 in words is "eighteen million, four hundred twenty-nine thousand, one hundred sixty-eight".