21082848 has 24 divisors (see below), whose sum is σ = 55342728. Its totient is φ = 7027584.

The previous prime is 21082847. The next prime is 21082849. The reversal of 21082848 is 84828012.

It is an interprime number because it is at equal distance from previous prime (21082847) and next prime (21082849).

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×21082848² = 888972959582208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21082843) 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, 109711 + ... + 109902.

It is an arithmetic number, because the mean of its divisors is an integer number (2305947).

Almost surely, 2^21082848 is an apocalyptic number.

It is an amenable number.

21082848 is an abundant number, since it is smaller than the sum of its proper divisors (34259880).

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

21082848 is a wasteful number, since it uses less digits than its factorization.

21082848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219626 (or 219618 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 21082848 is about 4591.6062548960. The cubic root of 21082848 is about 276.2547532334.

The spelling of 21082848 in words is "twenty-one million, eighty-two thousand, eight hundred forty-eight".