18554142 has 24 divisors (see below), whose sum is σ = 38442456. Its totient is φ = 5969824.

The previous prime is 18554141. The next prime is 18554147. The reversal of 18554142 is 24145581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18554141) 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, 3208 + ... + 6884.

It is an arithmetic number, because the mean of its divisors is an integer number (1601769).

Almost surely, 2^18554142 is an apocalyptic number.

18554142 is an abundant number, since it is smaller than the sum of its proper divisors (19888314).

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

18554142 is a wasteful number, since it uses less digits than its factorization.

18554142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740 (or 3711 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

The square root of 18554142 is about 4307.4519149957. The cubic root of 18554142 is about 264.7363795857.

The spelling of 18554142 in words is "eighteen million, five hundred fifty-four thousand, one hundred forty-two".