18331106 has 8 divisors (see below), whose sum is σ = 28383744. Its totient is φ = 8869860.

The previous prime is 18331099. The next prime is 18331109. The reversal of 18331106 is 60113381.

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

It is not an unprimeable number, because it can be changed into a prime (18331109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147770 + ... + 147893.

It is an arithmetic number, because the mean of its divisors is an integer number (3547968).

Almost surely, 2^18331106 is an apocalyptic number.

18331106 is a deficient number, since it is larger than the sum of its proper divisors (10052638).

18331106 is a wasteful number, since it uses less digits than its factorization.

18331106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295696.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 18331106 is about 4281.4840884908. The cubic root of 18331106 is about 263.6713176946.

Adding to 18331106 its reverse (60113381), we get a palindrome (78444487).

The spelling of 18331106 in words is "eighteen million, three hundred thirty-one thousand, one hundred six".