18995106 has 16 divisors (see below), whose sum is σ = 40912704. Its totient is φ = 5844624.

The previous prime is 18995089. The next prime is 18995107. The reversal of 18995106 is 60159981.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (18995107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121686 + ... + 121841.

It is an arithmetic number, because the mean of its divisors is an integer number (2557044).

Almost surely, 2^18995106 is an apocalyptic number.

18995106 is an abundant number, since it is smaller than the sum of its proper divisors (21917598).

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

18995106 is a wasteful number, since it uses less digits than its factorization.

18995106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243545.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 18995106 is about 4358.3375270853. The cubic root of 18995106 is about 266.8172521019.

The spelling of 18995106 in words is "eighteen million, nine hundred ninety-five thousand, one hundred six".