20440050 has 48 divisors (see below), whose sum is σ = 51886560. Its totient is φ = 5322240.

The previous prime is 20440039. The next prime is 20440109. The reversal of 20440050 is 5004402.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4866 + ... + 8034.

It is an arithmetic number, because the mean of its divisors is an integer number (1080970).

Almost surely, 2^20440050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20440050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25943280).

20440050 is an abundant number, since it is smaller than the sum of its proper divisors (31446510).

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

20440050 is a wasteful number, since it uses less digits than its factorization.

20440050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227 (or 3222 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 20440050 is about 4521.0673518540. The cubic root of 20440050 is about 273.4181358260.

Adding to 20440050 its reverse (5004402), we get a palindrome (25444452).

The spelling of 20440050 in words is "twenty million, four hundred forty thousand, fifty".