21228433482 has 8 divisors (see below), whose sum is σ = 42456866976. Its totient is φ = 7076144492.

The previous prime is 21228433417. The next prime is 21228433489. The reversal of 21228433482 is 28433482212.

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

21228433482 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 21228433482.

It is not an unprimeable number, because it can be changed into a prime (21228433489) 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, 1769036118 + ... + 1769036129.

It is an arithmetic number, because the mean of its divisors is an integer number (5307108372).

Almost surely, 2^21228433482 is an apocalyptic number.

21228433482 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.

21228433482 is a wasteful number, since it uses less digits than its factorization.

21228433482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3538072252.

The product of its digits is 147456, while the sum is 39.

The spelling of 21228433482 in words is "twenty-one billion, two hundred twenty-eight million, four hundred thirty-three thousand, four hundred eighty-two".