18057814 has 8 divisors (see below), whose sum is σ = 27187488. Its totient is φ = 8995320.

The previous prime is 18057799. The next prime is 18057817. The reversal of 18057814 is 41875081.

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 18057814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18057817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16117 + ... + 17200.

It is an arithmetic number, because the mean of its divisors is an integer number (3398436).

Almost surely, 2^18057814 is an apocalyptic number.

18057814 is a deficient number, since it is larger than the sum of its proper divisors (9129674).

18057814 is a wasteful number, since it uses less digits than its factorization.

18057814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33590.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 18057814 is about 4249.4486701218. The cubic root of 18057814 is about 262.3544238927.

The spelling of 18057814 in words is "eighteen million, fifty-seven thousand, eight hundred fourteen".