21468682 has 8 divisors (see below), whose sum is σ = 32288256. Its totient is φ = 10705932.

The previous prime is 21468677. The next prime is 21468691. The reversal of 21468682 is 28686412.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13248 + ... + 14779.

It is an arithmetic number, because the mean of its divisors is an integer number (4036032).

Almost surely, 2^21468682 is an apocalyptic number.

21468682 is a deficient number, since it is larger than the sum of its proper divisors (10819574).

21468682 is a wasteful number, since it uses less digits than its factorization.

21468682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28412.

The product of its digits is 36864, while the sum is 37.

The square root of 21468682 is about 4633.4309102435. The cubic root of 21468682 is about 277.9298082023.

The spelling of 21468682 in words is "twenty-one million, four hundred sixty-eight thousand, six hundred eighty-two".