20248844 has 48 divisors (see below), whose sum is σ = 45722880. Its totient is φ = 7613760.

The previous prime is 20248841. The next prime is 20248861. The reversal of 20248844 is 44884202.

It is a self number, because there is not a number n which added to its sum of digits gives 20248844.

It is not an unprimeable number, because it can be changed into a prime (20248841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7799 + ... + 10065.

It is an arithmetic number, because the mean of its divisors is an integer number (952560).

Almost surely, 2^20248844 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 20248844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22861440).

20248844 is an abundant number, since it is smaller than the sum of its proper divisors (25474036).

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

20248844 is a wasteful number, since it uses less digits than its factorization.

20248844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318 (or 2316 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 20248844 is about 4499.8715537224. The cubic root of 20248844 is about 272.5629021807.

The spelling of 20248844 in words is "twenty million, two hundred forty-eight thousand, eight hundred forty-four".