21675482 has 8 divisors (see below), whose sum is σ = 32634900. Its totient is φ = 10797184.

The previous prime is 21675473. The next prime is 21675491. The reversal of 21675482 is 28457612.

It is an interprime number because it is at equal distance from previous prime (21675473) and next prime (21675491).

It can be written as a sum of positive squares in 2 ways, for example, as 21631801 + 43681 = 4651^2 + 209^2 .

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

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, 19607 + ... + 20682.

Almost surely, 2^21675482 is an apocalyptic number.

21675482 is a deficient number, since it is larger than the sum of its proper divisors (10959418).

21675482 is a wasteful number, since it uses less digits than its factorization.

21675482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40560.

The product of its digits is 26880, while the sum is 35.

The square root of 21675482 is about 4655.6935036576. The cubic root of 21675482 is about 278.8193569498.

The spelling of 21675482 in words is "twenty-one million, six hundred seventy-five thousand, four hundred eighty-two".