18142074 has 24 divisors (see below), whose sum is σ = 41377440. Its totient is φ = 5728968.

The previous prime is 18142073. The next prime is 18142097. The reversal of 18142074 is 47024181.

It is not an unprimeable number, because it can be changed into a prime (18142073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26182 + ... + 26865.

It is an arithmetic number, because the mean of its divisors is an integer number (1724060).

Almost surely, 2^18142074 is an apocalyptic number.

18142074 is an abundant number, since it is smaller than the sum of its proper divisors (23235366).

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

18142074 is a wasteful number, since it uses less digits than its factorization.

18142074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53074 (or 53071 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 18142074 is about 4259.3513590687. The cubic root of 18142074 is about 262.7618502756.

The spelling of 18142074 in words is "eighteen million, one hundred forty-two thousand, seventy-four".