18345152 has 28 divisors (see below), whose sum is σ = 41605200. Its totient is φ = 7862016.

The previous prime is 18345137. The next prime is 18345157. The reversal of 18345152 is 25154381.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (18345157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20027 + ... + 20922.

It is an arithmetic number, because the mean of its divisors is an integer number (1485900).

Almost surely, 2^18345152 is an apocalyptic number.

It is an amenable number.

18345152 is an abundant number, since it is smaller than the sum of its proper divisors (23260048).

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

18345152 is an equidigital number, since it uses as much as digits as its factorization.

18345152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40968 (or 40958 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 18345152 is about 4283.1240934626. The cubic root of 18345152 is about 263.7386455434.

The spelling of 18345152 in words is "eighteen million, three hundred forty-five thousand, one hundred fifty-two".