16874816 has 42 divisors (see below), whose sum is σ = 38960298. Its totient is φ = 7230720.

The previous prime is 16874789. The next prime is 16874843. The reversal of 16874816 is 61847861.

It is an interprime number because it is at equal distance from previous prime (16874789) and next prime (16874843).

It can be written as a sum of positive squares in only one way, i.e., 13249600 + 3625216 = 3640^2 + 1904^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 446 + ... + 5826.

Almost surely, 2^16874816 is an apocalyptic number.

16874816 is a gapful number since it is divisible by the number (16) 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 16874816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19480149).

16874816 is an abundant number, since it is smaller than the sum of its proper divisors (22085482).

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

16874816 is an equidigital number, since it uses as much as digits as its factorization.

16874816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407 (or 5390 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 16874816 is about 4107.8967854609. The cubic root of 16874816 is about 256.4954597446.

The spelling of 16874816 in words is "sixteen million, eight hundred seventy-four thousand, eight hundred sixteen".