20441100 has 72 divisors (see below), whose sum is σ = 60166288. Its totient is φ = 5356800.

The previous prime is 20441077. The next prime is 20441107. The reversal of 20441100 is 114402.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (20441107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17742 + ... + 18858.

Almost surely, 2^20441100 is an apocalyptic number.

20441100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20441100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30083144).

20441100 is an abundant number, since it is smaller than the sum of its proper divisors (39725188).

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

20441100 is a wasteful number, since it uses less digits than its factorization.

20441100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195 (or 1188 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20441100 is about 4521.1834733839. The cubic root of 20441100 is about 273.4228175518.

Adding to 20441100 its reverse (114402), we get a palindrome (20555502).

The spelling of 20441100 in words is "twenty million, four hundred forty-one thousand, one hundred".