18442526 has 8 divisors (see below), whose sum is σ = 27708744. Its totient is φ = 9206280.

The previous prime is 18442511. The next prime is 18442531. The reversal of 18442526 is 62524481.

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 = 18442492 and 18442501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5885 + ... + 8456.

It is an arithmetic number, because the mean of its divisors is an integer number (3463593).

Almost surely, 2^18442526 is an apocalyptic number.

18442526 is a deficient number, since it is larger than the sum of its proper divisors (9266218).

18442526 is a wasteful number, since it uses less digits than its factorization.

18442526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14986.

The product of its digits is 15360, while the sum is 32.

The square root of 18442526 is about 4294.4762195173. The cubic root of 18442526 is about 264.2044540323.

The spelling of 18442526 in words is "eighteen million, four hundred forty-two thousand, five hundred twenty-six".