18828906 has 16 divisors (see below), whose sum is σ = 38296800. Its totient is φ = 6169808.

The previous prime is 18828889. The next prime is 18828907. The reversal of 18828906 is 60982881.

It is not an unprimeable number, because it can be changed into a prime (18828907) 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, 26241 + ... + 26948.

It is an arithmetic number, because the mean of its divisors is an integer number (2393550).

Almost surely, 2^18828906 is an apocalyptic number.

18828906 is an abundant number, since it is smaller than the sum of its proper divisors (19467894).

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

18828906 is a wasteful number, since it uses less digits than its factorization.

18828906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53253.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 18828906 is about 4339.2287333119. The cubic root of 18828906 is about 266.0367880225.

The spelling of 18828906 in words is "eighteen million, eight hundred twenty-eight thousand, nine hundred six".