16920108 has 72 divisors (see below), whose sum is σ = 46628400. Its totient is φ = 5152896.

The previous prime is 16920107. The next prime is 16920143. The reversal of 16920108 is 80102961.

It is not an unprimeable number, because it can be changed into a prime (16920107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19410 + ... + 20262.

Almost surely, 2^16920108 is an apocalyptic number.

16920108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16920108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23314200).

16920108 is an abundant number, since it is smaller than the sum of its proper divisors (29708292).

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

16920108 is a wasteful number, since it uses less digits than its factorization.

16920108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 16920108 is about 4113.4058880689. The cubic root of 16920108 is about 256.7247326508.

The spelling of 16920108 in words is "sixteen million, nine hundred twenty thousand, one hundred eight".