18675742 has 8 divisors (see below), whose sum is σ = 28488600. Its totient is φ = 9179544.

The previous prime is 18675691. The next prime is 18675743. The reversal of 18675742 is 24757681.

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

It is a junction number, because it is equal to n+sod(n) for n = 18675695 and 18675704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18675743) 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 3 ways as a sum of consecutive naturals, for example, 79017 + ... + 79252.

It is an arithmetic number, because the mean of its divisors is an integer number (3561075).

Almost surely, 2^18675742 is an apocalyptic number.

18675742 is a deficient number, since it is larger than the sum of its proper divisors (9812858).

18675742 is a wasteful number, since it uses less digits than its factorization.

18675742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158330.

The product of its digits is 94080, while the sum is 40.

The square root of 18675742 is about 4321.5439370669. The cubic root of 18675742 is about 265.3134631692.

The spelling of 18675742 in words is "eighteen million, six hundred seventy-five thousand, seven hundred forty-two".