18874152 has 48 divisors (see below), whose sum is σ = 55766880. Its totient is φ = 5719200.

The previous prime is 18874147. The next prime is 18874153. The reversal of 18874152 is 25147881.

It is a super-2 number, since 2×18874152² = 712467227438208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (18874153) 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, 11124 + ... + 12707.

It is an arithmetic number, because the mean of its divisors is an integer number (1161810).

Almost surely, 2^18874152 is an apocalyptic number.

18874152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18874152 is an abundant number, since it is smaller than the sum of its proper divisors (36892728).

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

18874152 is a wasteful number, since it uses less digits than its factorization.

18874152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23854 (or 23847 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 18874152 is about 4344.4392043162. The cubic root of 18874152 is about 266.2497136808.

The spelling of 18874152 in words is "eighteen million, eight hundred seventy-four thousand, one hundred fifty-two".