18579242 has 8 divisors (see below), whose sum is σ = 30402432. Its totient is φ = 8445100.

The previous prime is 18579179. The next prime is 18579247. The reversal of 18579242 is 24297581.

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 = 18579196 and 18579205.

It is not an unprimeable number, because it can be changed into a prime (18579247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422234 + ... + 422277.

It is an arithmetic number, because the mean of its divisors is an integer number (3800304).

Almost surely, 2^18579242 is an apocalyptic number.

18579242 is a deficient number, since it is larger than the sum of its proper divisors (11823190).

18579242 is a wasteful number, since it uses less digits than its factorization.

18579242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844524.

The product of its digits is 40320, while the sum is 38.

The square root of 18579242 is about 4310.3644857483. The cubic root of 18579242 is about 264.8557040468.

The spelling of 18579242 in words is "eighteen million, five hundred seventy-nine thousand, two hundred forty-two".