16910020 has 24 divisors (see below), whose sum is σ = 35590464. Its totient is φ = 6748896.

The previous prime is 16910011. The next prime is 16910027. The reversal of 16910020 is 2001961.

16910020 is a nontrivial binomial coefficient, being equal to C(5816, 2).

It is a self number, because there is not a number n which added to its sum of digits gives 16910020.

It is not an unprimeable number, because it can be changed into a prime (16910027) 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 7 ways as a sum of consecutive naturals, for example, 13959 + ... + 15121.

It is an arithmetic number, because the mean of its divisors is an integer number (1482936).

Almost surely, 2^16910020 is an apocalyptic number.

16910020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16910020 is the 5815-th triangular number and also the 2908-th hexagonal number.

16910020 is the 1939-th centered nonagonal number.

It is an amenable number.

16910020 is an abundant number, since it is smaller than the sum of its proper divisors (18680444).

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

16910020 is a wasteful number, since it uses less digits than its factorization.

16910020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 16910020 is about 4112.1794707916. The cubic root of 16910020 is about 256.6737015744.

Adding to 16910020 its reverse (2001961), we get a palindrome (18911981).

The spelling of 16910020 in words is "sixteen million, nine hundred ten thousand, twenty".