21022482 has 16 divisors (see below), whose sum is σ = 45279360. Its totient is φ = 6468432.

The previous prime is 21022471. The next prime is 21022517. The reversal of 21022482 is 28422012.

It is a happy number.

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, 134682 + ... + 134837.

It is an arithmetic number, because the mean of its divisors is an integer number (2829960).

Almost surely, 2^21022482 is an apocalyptic number.

21022482 is an abundant number, since it is smaller than the sum of its proper divisors (24256878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21022482 is a wasteful number, since it uses less digits than its factorization.

21022482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269537.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 21022482 is about 4585.0280260866. The cubic root of 21022482 is about 275.9908367048.

Adding to 21022482 its reverse (28422012), we get a palindrome (49444494).

The spelling of 21022482 in words is "twenty-one million, twenty-two thousand, four hundred eighty-two".