18675906 has 16 divisors (see below), whose sum is σ = 37503648. Its totient is φ = 6200000.

The previous prime is 18675883. The next prime is 18675907. The reversal of 18675906 is 60957681.

It is not an unprimeable number, because it can be changed into a prime (18675907) 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, 4695 + ... + 7706.

It is an arithmetic number, because the mean of its divisors is an integer number (2343978).

Almost surely, 2^18675906 is an apocalyptic number.

18675906 is an abundant number, since it is smaller than the sum of its proper divisors (18827742).

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

18675906 is a wasteful number, since it uses less digits than its factorization.

18675906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12657.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 18675906 is about 4321.5629117253. The cubic root of 18675906 is about 265.3142397788.

The spelling of 18675906 in words is "eighteen million, six hundred seventy-five thousand, nine hundred six".