21648482 has 8 divisors (see below), whose sum is σ = 33163776. Its totient is φ = 10593892.

The previous prime is 21648481. The next prime is 21648503. The reversal of 21648482 is 28484612.

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

It is not an unprimeable number, because it can be changed into a prime (21648481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115058 + ... + 115245.

It is an arithmetic number, because the mean of its divisors is an integer number (4145472).

Almost surely, 2^21648482 is an apocalyptic number.

21648482 is a deficient number, since it is larger than the sum of its proper divisors (11515294).

21648482 is a wasteful number, since it uses less digits than its factorization.

21648482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230352.

The product of its digits is 24576, while the sum is 35.

The square root of 21648482 is about 4652.7929246851. The cubic root of 21648482 is about 278.7035386780.

The spelling of 21648482 in words is "twenty-one million, six hundred forty-eight thousand, four hundred eighty-two".