21883382 has 8 divisors (see below), whose sum is σ = 33444576. Its totient is φ = 10735192.

The previous prime is 21883363. The next prime is 21883397. The reversal of 21883382 is 28338812.

It is a happy number.

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, 103118 + ... + 103329.

It is an arithmetic number, because the mean of its divisors is an integer number (4180572).

Almost surely, 2^21883382 is an apocalyptic number.

21883382 is a deficient number, since it is larger than the sum of its proper divisors (11561194).

21883382 is a wasteful number, since it uses less digits than its factorization.

21883382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206502.

The product of its digits is 18432, while the sum is 35.

The square root of 21883382 is about 4677.9677211370. The cubic root of 21883382 is about 279.7079522948.

The spelling of 21883382 in words is "twenty-one million, eight hundred eighty-three thousand, three hundred eighty-two".