18396357 has 8 divisors (see below), whose sum is σ = 28032576. Its totient is φ = 10512192.

The previous prime is 18396347. The next prime is 18396359. The reversal of 18396357 is 75369381.

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

It is not a de Polignac number, because 18396357 - 2⁷ = 18396229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18396359) 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 7 ways as a sum of consecutive naturals, for example, 437988 + ... + 438029.

It is an arithmetic number, because the mean of its divisors is an integer number (3504072).

Almost surely, 2^18396357 is an apocalyptic number.

It is an amenable number.

18396357 is a deficient number, since it is larger than the sum of its proper divisors (9636219).

18396357 is an equidigital number, since it uses as much as digits as its factorization.

18396357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876027.

The product of its digits is 136080, while the sum is 42.

The square root of 18396357 is about 4289.0974575078. The cubic root of 18396357 is about 263.9838000849.

The spelling of 18396357 in words is "eighteen million, three hundred ninety-six thousand, three hundred fifty-seven".