18444254 has 8 divisors (see below), whose sum is σ = 27770040. Its totient is φ = 9187576.

The previous prime is 18444247. The next prime is 18444281. The reversal of 18444254 is 45244481.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18444254.

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, 16604 + ... + 17679.

It is an arithmetic number, because the mean of its divisors is an integer number (3471255).

Almost surely, 2^18444254 is an apocalyptic number.

18444254 is a deficient number, since it is larger than the sum of its proper divisors (9325786).

18444254 is a wasteful number, since it uses less digits than its factorization.

18444254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34554.

The product of its digits is 20480, while the sum is 32.

The square root of 18444254 is about 4294.6774034845. The cubic root of 18444254 is about 264.2127054515.

The spelling of 18444254 in words is "eighteen million, four hundred forty-four thousand, two hundred fifty-four".