18468574 has 4 divisors (see below), whose sum is σ = 27702864. Its totient is φ = 9234286.

The previous prime is 18468547. The next prime is 18468577. The reversal of 18468574 is 47586481.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18468574.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18468577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4617142 + ... + 4617145.

It is an arithmetic number, because the mean of its divisors is an integer number (6925716).

Almost surely, 2^18468574 is an apocalyptic number.

18468574 is a deficient number, since it is larger than the sum of its proper divisors (9234290).

18468574 is an equidigital number, since it uses as much as digits as its factorization.

18468574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9234289.

The product of its digits is 215040, while the sum is 43.

The square root of 18468574 is about 4297.5078824826. The cubic root of 18468574 is about 264.3287819062.

The spelling of 18468574 in words is "eighteen million, four hundred sixty-eight thousand, five hundred seventy-four".