20982048 has 48 divisors (see below), whose sum is σ = 55996416. Its totient is φ = 6877440.

The previous prime is 20982041. The next prime is 20982053. The reversal of 20982048 is 84028902.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (20982041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4065 + ... + 7647.

It is an arithmetic number, because the mean of its divisors is an integer number (1166592).

Almost surely, 2^20982048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20982048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27998208).

20982048 is an abundant number, since it is smaller than the sum of its proper divisors (35014368).

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

20982048 is a wasteful number, since it uses less digits than its factorization.

20982048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657 (or 3649 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 20982048 is about 4580.6165523868. The cubic root of 20982048 is about 275.8137790243.

The spelling of 20982048 in words is "twenty million, nine hundred eighty-two thousand, forty-eight".