21484482 has 8 divisors (see below), whose sum is σ = 42968976. Its totient is φ = 7161492.

The previous prime is 21484471. The next prime is 21484487. The reversal of 21484482 is 28448412.

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

21484482 is an admirable number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (21484487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1790368 + ... + 1790379.

It is an arithmetic number, because the mean of its divisors is an integer number (5371122).

Almost surely, 2^21484482 is an apocalyptic number.

21484482 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.

21484482 is a wasteful number, since it uses less digits than its factorization.

21484482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3580752.

The product of its digits is 16384, while the sum is 33.

The square root of 21484482 is about 4635.1355967221. The cubic root of 21484482 is about 277.9979728300.

The spelling of 21484482 in words is "twenty-one million, four hundred eighty-four thousand, four hundred eighty-two".