20383244 has 48 divisors (see below), whose sum is σ = 43954176. Its totient is φ = 8078400.

The previous prime is 20383229. The next prime is 20383249. The reversal of 20383244 is 44238302.

It is not an unprimeable number, because it can be changed into a prime (20383249) 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, 19454 + ... + 20474.

It is an arithmetic number, because the mean of its divisors is an integer number (915712).

Almost surely, 2^20383244 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 20383244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21977088).

20383244 is an abundant number, since it is smaller than the sum of its proper divisors (23570932).

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

20383244 is a wasteful number, since it uses less digits than its factorization.

20383244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 20383244 is about 4514.7806148250. The cubic root of 20383244 is about 273.1646106588.

The spelling of 20383244 in words is "twenty million, three hundred eighty-three thousand, two hundred forty-four".