18106842 has 32 divisors (see below), whose sum is σ = 40699008. Its totient is φ = 5328576.

The previous prime is 18106841. The next prime is 18106843. The reversal of 18106842 is 24860181.

It is an interprime number because it is at equal distance from previous prime (18106841) and next prime (18106843).

It is not an unprimeable number, because it can be changed into a prime (18106841) 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 15 ways as a sum of consecutive naturals, for example, 3253 + ... + 6840.

It is an arithmetic number, because the mean of its divisors is an integer number (1271844).

Almost surely, 2^18106842 is an apocalyptic number.

18106842 is an abundant number, since it is smaller than the sum of its proper divisors (22592166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18106842 is a wasteful number, since it uses less digits than its factorization.

18106842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10134.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 18106842 is about 4255.2135081568. The cubic root of 18106842 is about 262.5916450983.

The spelling of 18106842 in words is "eighteen million, one hundred six thousand, eight hundred forty-two".