21982614 has 16 divisors (see below), whose sum is σ = 44066928. Its totient is φ = 7310592.

The previous prime is 21982603. The next prime is 21982621. The reversal of 21982614 is 41628912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1267 + ... + 6750.

It is an arithmetic number, because the mean of its divisors is an integer number (2754183).

Almost surely, 2^21982614 is an apocalyptic number.

21982614 is an abundant number, since it is smaller than the sum of its proper divisors (22084314).

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

21982614 is a wasteful number, since it uses less digits than its factorization.

21982614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8479.

The product of its digits is 6912, while the sum is 33.

The square root of 21982614 is about 4688.5620396876. The cubic root of 21982614 is about 280.1301011042.

The spelling of 21982614 in words is "twenty-one million, nine hundred eighty-two thousand, six hundred fourteen".