18164842 has 8 divisors (see below), whose sum is σ = 27827136. Its totient is φ = 8889132.

The previous prime is 18164833. The next prime is 18164843. The reversal of 18164842 is 24846181.

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

It is a super-2 number, since 2×18164842² = 659922969769928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18164798 and 18164807.

It is not an unprimeable number, because it can be changed into a prime (18164843) 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, 96528 + ... + 96715.

It is an arithmetic number, because the mean of its divisors is an integer number (3478392).

Almost surely, 2^18164842 is an apocalyptic number.

18164842 is a deficient number, since it is larger than the sum of its proper divisors (9662294).

18164842 is a wasteful number, since it uses less digits than its factorization.

18164842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193292.

The product of its digits is 12288, while the sum is 34.

The square root of 18164842 is about 4262.0232284679. The cubic root of 18164842 is about 262.8717249033.

The spelling of 18164842 in words is "eighteen million, one hundred sixty-four thousand, eight hundred forty-two".