18814357 has 8 divisors (see below), whose sum is σ = 19121760. Its totient is φ = 18509040.

The previous prime is 18814339. The next prime is 18814423. The reversal of 18814357 is 75341881.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18814357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18814307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34507 + ... + 35047.

It is an arithmetic number, because the mean of its divisors is an integer number (2390220).

Almost surely, 2^18814357 is an apocalyptic number.

It is an amenable number.

18814357 is a deficient number, since it is larger than the sum of its proper divisors (307403).

18814357 is an equidigital number, since it uses as much as digits as its factorization.

18814357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043.

The product of its digits is 26880, while the sum is 37.

The square root of 18814357 is about 4337.5519593430. The cubic root of 18814357 is about 265.9682486080.

The spelling of 18814357 in words is "eighteen million, eight hundred fourteen thousand, three hundred fifty-seven".