16885090 has 8 divisors (see below), whose sum is σ = 30393180. Its totient is φ = 6754032.

The previous prime is 16885087. The next prime is 16885093. The reversal of 16885090 is 9058861.

It is an interprime number because it is at equal distance from previous prime (16885087) and next prime (16885093).

It can be written as a sum of positive squares in 2 ways, for example, as 16556761 + 328329 = 4069^2 + 573^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (16885093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844245 + ... + 844264.

Almost surely, 2^16885090 is an apocalyptic number.

16885090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16885090 is a deficient number, since it is larger than the sum of its proper divisors (13508090).

16885090 is a wasteful number, since it uses less digits than its factorization.

16885090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688516.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 16885090 is about 4109.1471134531. The cubic root of 16885090 is about 256.5475037634.

It can be divided in two parts, 168 and 85090, that added together give a palindrome (85258).

The spelling of 16885090 in words is "sixteen million, eight hundred eighty-five thousand, ninety".