18288468 has 36 divisors (see below), whose sum is σ = 50432928. Its totient is φ = 5541840.

The previous prime is 18288467. The next prime is 18288493. The reversal of 18288468 is 86488281.

It is a happy number.

18288468 is a `hidden beast` number, since 182 + 8 + 8 + 468 = 666.

18288468 is nontrivially palindromic in base 13.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18288467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22696 + ... + 23487.

Almost surely, 2^18288468 is an apocalyptic number.

18288468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18288468 is an abundant number, since it is smaller than the sum of its proper divisors (32144460).

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

18288468 is a wasteful number, since it uses less digits than its factorization.

18288468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46204 (or 46199 counting only the distinct ones).

The product of its digits is 196608, while the sum is 45.

The square root of 18288468 is about 4276.5018414587. The cubic root of 18288468 is about 263.4667265565.

It can be divided in two parts, 1828 and 8468, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 18288468 in words is "eighteen million, two hundred eighty-eight thousand, four hundred sixty-eight".