16886490 has 32 divisors (see below), whose sum is σ = 40659840. Its totient is φ = 4488384.

The previous prime is 16886431. The next prime is 16886503. The reversal of 16886490 is 9468861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10947 + ... + 12393.

It is an arithmetic number, because the mean of its divisors is an integer number (1270620).

Almost surely, 2^16886490 is an apocalyptic number.

16886490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16886490 is an abundant number, since it is smaller than the sum of its proper divisors (23773350).

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

16886490 is a wasteful number, since it uses less digits than its factorization.

16886490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 16886490 is about 4109.3174615744. The cubic root of 16886490 is about 256.5545939749.

The spelling of 16886490 in words is "sixteen million, eight hundred eighty-six thousand, four hundred ninety".