21310482 has 8 divisors (see below), whose sum is σ = 42620976. Its totient is φ = 7103492.

The previous prime is 21310477. The next prime is 21310493. The reversal of 21310482 is 28401312.

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

21310482 is an admirable number.

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, 1775868 + ... + 1775879.

It is an arithmetic number, because the mean of its divisors is an integer number (5327622).

Almost surely, 2^21310482 is an apocalyptic number.

21310482 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21310482 is a wasteful number, since it uses less digits than its factorization.

21310482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551752.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 21310482 is about 4616.3277613272. The cubic root of 21310482 is about 277.2454479266.

Adding to 21310482 its reverse (28401312), we get a palindrome (49711794).

The spelling of 21310482 in words is "twenty-one million, three hundred ten thousand, four hundred eighty-two".