16885490 has 32 divisors (see below), whose sum is σ = 32235840. Its totient is φ = 6350400.

The previous prime is 16885459. The next prime is 16885499. The reversal of 16885490 is 9458861.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16885499) by changing a digit.

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, 34145 + ... + 34635.

It is an arithmetic number, because the mean of its divisors is an integer number (1007370).

Almost surely, 2^16885490 is an apocalyptic number.

16885490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16885490 is a deficient number, since it is larger than the sum of its proper divisors (15350350).

16885490 is a wasteful number, since it uses less digits than its factorization.

16885490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 16885490 is about 4109.1957850655. The cubic root of 16885490 is about 256.5495295781.

It can be divided in two parts, 168 and 85490, that added together give a palindrome (85658).

The spelling of 16885490 in words is "sixteen million, eight hundred eighty-five thousand, four hundred ninety".