21192682 has 16 divisors (see below), whose sum is σ = 36947520. Its totient is φ = 8928288.

The previous prime is 21192671. The next prime is 21192709. The reversal of 21192682 is 28629112.

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, 12003 + ... + 13654.

It is an arithmetic number, because the mean of its divisors is an integer number (2309220).

Almost surely, 2^21192682 is an apocalyptic number.

21192682 is a deficient number, since it is larger than the sum of its proper divisors (15754838).

21192682 is a wasteful number, since it uses less digits than its factorization.

21192682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25725.

The product of its digits is 3456, while the sum is 31.

The square root of 21192682 is about 4603.5510206796. The cubic root of 21192682 is about 276.7336516247.

The spelling of 21192682 in words is "twenty-one million, one hundred ninety-two thousand, six hundred eighty-two".