18142916 has 12 divisors (see below), whose sum is σ = 34636560. Its totient is φ = 8246760.

The previous prime is 18142879. The next prime is 18142919. The reversal of 18142916 is 61924181.

It is not an unprimeable number, because it can be changed into a prime (18142919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206126 + ... + 206213.

It is an arithmetic number, because the mean of its divisors is an integer number (2886380).

Almost surely, 2^18142916 is an apocalyptic number.

It is an amenable number.

18142916 is a deficient number, since it is larger than the sum of its proper divisors (16493644).

18142916 is a wasteful number, since it uses less digits than its factorization.

18142916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412354 (or 412352 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 18142916 is about 4259.4501992628. The cubic root of 18142916 is about 262.7659152657.

The spelling of 18142916 in words is "eighteen million, one hundred forty-two thousand, nine hundred sixteen".