18548542 has 8 divisors (see below), whose sum is σ = 27945000. Its totient is φ = 9233544.

The previous prime is 18548539. The next prime is 18548561. The reversal of 18548542 is 24584581.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 19792 + ... + 20707.

It is an arithmetic number, because the mean of its divisors is an integer number (3493125).

Almost surely, 2^18548542 is an apocalyptic number.

18548542 is a deficient number, since it is larger than the sum of its proper divisors (9396458).

18548542 is a wasteful number, since it uses less digits than its factorization.

18548542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40730.

The product of its digits is 51200, while the sum is 37.

The square root of 18548542 is about 4306.8018296643. The cubic root of 18548542 is about 264.7097427140.

The spelling of 18548542 in words is "eighteen million, five hundred forty-eight thousand, five hundred forty-two".