18426049 has 8 divisors (see below), whose sum is σ = 19215360. Its totient is φ = 17647056.

The previous prime is 18426041. The next prime is 18426053. The reversal of 18426049 is 94062481.

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

It is a cyclic number.

It is not a de Polignac number, because 18426049 - 2³ = 18426041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18426041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1182 + ... + 6184.

It is an arithmetic number, because the mean of its divisors is an integer number (2401920).

Almost surely, 2^18426049 is an apocalyptic number.

It is an amenable number.

18426049 is a deficient number, since it is larger than the sum of its proper divisors (789311).

18426049 is a wasteful number, since it uses less digits than its factorization.

18426049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5159.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 18426049 is about 4292.5573962383. The cubic root of 18426049 is about 264.1257483662.

The spelling of 18426049 in words is "eighteen million, four hundred twenty-six thousand, forty-nine".