18433104 has 80 divisors (see below), whose sum is σ = 49871808. Its totient is φ = 5861376.

The previous prime is 18433073. The next prime is 18433109. The reversal of 18433104 is 40133481.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18433109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172219 + ... + 172325.

Almost surely, 2^18433104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18433104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24935904).

18433104 is an abundant number, since it is smaller than the sum of its proper divisors (31438704).

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

18433104 is a wasteful number, since it uses less digits than its factorization.

18433104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 18433104 is about 4293.3790887831. The cubic root of 18433104 is about 264.1594537179.

Adding to 18433104 its reverse (40133481), we get a palindrome (58566585).

The spelling of 18433104 in words is "eighteen million, four hundred thirty-three thousand, one hundred four".