21326482 has 8 divisors (see below), whose sum is σ = 32013900. Its totient is φ = 10655184.

The previous prime is 21326479. The next prime is 21326527. The reversal of 21326482 is 28462312.

It can be written as a sum of positive squares in 2 ways, for example, as 18826921 + 2499561 = 4339^2 + 1581^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 21326482.

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, 144 + ... + 6532.

Almost surely, 2^21326482 is an apocalyptic number.

21326482 is a deficient number, since it is larger than the sum of its proper divisors (10687418).

21326482 is a wasteful number, since it uses less digits than its factorization.

21326482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8060.

The product of its digits is 4608, while the sum is 28.

The square root of 21326482 is about 4618.0604153692. The cubic root of 21326482 is about 277.3148162537.

Adding to 21326482 its reverse (28462312), we get a palindrome (49788794).

The spelling of 21326482 in words is "twenty-one million, three hundred twenty-six thousand, four hundred eighty-two".