16984220 has 24 divisors (see below), whose sum is σ = 38909808. Its totient is φ = 6176000.

The previous prime is 16984213. The next prime is 16984223. The reversal of 16984220 is 2248961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16984223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38381 + ... + 38820.

It is an arithmetic number, because the mean of its divisors is an integer number (1621242).

Almost surely, 2^16984220 is an apocalyptic number.

16984220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16984220 is an abundant number, since it is smaller than the sum of its proper divisors (21925588).

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

16984220 is a wasteful number, since it uses less digits than its factorization.

16984220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77221 (or 77219 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 16984220 is about 4121.1915752607. The cubic root of 16984220 is about 257.0485759593.

The spelling of 16984220 in words is "sixteen million, nine hundred eighty-four thousand, two hundred twenty".