18414142 has 4 divisors (see below), whose sum is σ = 27621216. Its totient is φ = 9207070.

The previous prime is 18414139. The next prime is 18414157. The reversal of 18414142 is 24141481.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4603534 + ... + 4603537.

It is an arithmetic number, because the mean of its divisors is an integer number (6905304).

Almost surely, 2^18414142 is an apocalyptic number.

18414142 is a deficient number, since it is larger than the sum of its proper divisors (9207074).

18414142 is an equidigital number, since it uses as much as digits as its factorization.

18414142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9207073.

The product of its digits is 1024, while the sum is 25.

The square root of 18414142 is about 4291.1702366604. The cubic root of 18414142 is about 264.0688430044.

The spelling of 18414142 in words is "eighteen million, four hundred fourteen thousand, one hundred forty-two".