16845880 has 16 divisors (see below), whose sum is σ = 37903320. Its totient is φ = 6738336.

The previous prime is 16845859. The next prime is 16845883. The reversal of 16845880 is 8854861.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 421147 = 16845880 / (1 + 6 + 8 + 4 + 5 + 8 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16845883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210534 + ... + 210613.

Almost surely, 2^16845880 is an apocalyptic number.

16845880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16845880 is an abundant number, since it is smaller than the sum of its proper divisors (21057440).

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

16845880 is a wasteful number, since it uses less digits than its factorization.

16845880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421158 (or 421154 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 16845880 is about 4104.3732773713. The cubic root of 16845880 is about 256.3487677960.

The spelling of 16845880 in words is "sixteen million, eight hundred forty-five thousand, eight hundred eighty".