18142524 has 18 divisors (see below), whose sum is σ = 45860360. Its totient is φ = 6047496.

The previous prime is 18142513. The next prime is 18142567. The reversal of 18142524 is 42524181.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251944 + ... + 252015.

Almost surely, 2^18142524 is an apocalyptic number.

It is an amenable number.

18142524 is an abundant number, since it is smaller than the sum of its proper divisors (27717836).

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

18142524 is a wasteful number, since it uses less digits than its factorization.

18142524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503969 (or 503964 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 18142524 is about 4259.4041836858. The cubic root of 18142524 is about 262.7640227919.

The spelling of 18142524 in words is "eighteen million, one hundred forty-two thousand, five hundred twenty-four".