18107484 has 48 divisors (see below), whose sum is σ = 44476320. Its totient is φ = 5725440.

The previous prime is 18107473. The next prime is 18107489. The reversal of 18107484 is 48470181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18107489) 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, 20802 + ... + 21654.

It is an arithmetic number, because the mean of its divisors is an integer number (926590).

Almost surely, 2^18107484 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 18107484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22238160).

18107484 is an abundant number, since it is smaller than the sum of its proper divisors (26368836).

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

18107484 is a wasteful number, since it uses less digits than its factorization.

18107484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 18107484 is about 4255.2889443609. The cubic root of 18107484 is about 262.5947485631.

The spelling of 18107484 in words is "eighteen million, one hundred seven thousand, four hundred eighty-four".