18975542 has 8 divisors (see below), whose sum is σ = 28634256. Its totient is φ = 9430792.

The previous prime is 18975533. The next prime is 18975557. The reversal of 18975542 is 24557981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18975542.

It is a congruent number.

It is an unprimeable number.

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, 28073 + ... + 28740.

It is an arithmetic number, because the mean of its divisors is an integer number (3579282).

Almost surely, 2^18975542 is an apocalyptic number.

18975542 is a deficient number, since it is larger than the sum of its proper divisors (9658714).

18975542 is a wasteful number, since it uses less digits than its factorization.

18975542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56982.

The product of its digits is 100800, while the sum is 41.

The square root of 18975542 is about 4356.0925150873. The cubic root of 18975542 is about 266.7256178697.

The spelling of 18975542 in words is "eighteen million, nine hundred seventy-five thousand, five hundred forty-two".