16641984 has 28 divisors (see below), whose sum is σ = 44032424. Its totient is φ = 5547264.

The previous prime is 16641983. The next prime is 16641991. The reversal of 16641984 is 48914661.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16641983) 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, 43147 + ... + 43530.

Almost surely, 2^16641984 is an apocalyptic number.

It is an amenable number.

16641984 is an abundant number, since it is smaller than the sum of its proper divisors (27390440).

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

16641984 is an equidigital number, since it uses as much as digits as its factorization.

16641984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86692 (or 86682 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 16641984 is about 4079.4587876335. The cubic root of 16641984 is about 255.3103180965.

The spelling of 16641984 in words is "sixteen million, six hundred forty-one thousand, nine hundred eighty-four".