21983422 has 8 divisors (see below), whose sum is σ = 33017400. Its totient is φ = 10977624.

The previous prime is 21983417. The next prime is 21983441. The reversal of 21983422 is 22438912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4972 + ... + 8287.

It is an arithmetic number, because the mean of its divisors is an integer number (4127175).

Almost surely, 2^21983422 is an apocalyptic number.

21983422 is a deficient number, since it is larger than the sum of its proper divisors (11033978).

21983422 is a wasteful number, since it uses less digits than its factorization.

21983422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14090.

The product of its digits is 6912, while the sum is 31.

The square root of 21983422 is about 4688.6482060398. The cubic root of 21983422 is about 280.1335332461.

The spelling of 21983422 in words is "twenty-one million, nine hundred eighty-three thousand, four hundred twenty-two".