20441016 has 48 divisors (see below), whose sum is σ = 55685760. Its totient is φ = 6773760.

The previous prime is 20440999. The next prime is 20441023. The reversal of 20441016 is 61014402.

It is a super-2 number, since 2×20441016² = 835670270224512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 20441016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13161 + ... + 14631.

It is an arithmetic number, because the mean of its divisors is an integer number (1160120).

Almost surely, 2^20441016 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 20441016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27842880).

20441016 is an abundant number, since it is smaller than the sum of its proper divisors (35244744).

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

20441016 is a wasteful number, since it uses less digits than its factorization.

20441016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676 (or 1669 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20441016 is about 4521.1741837713. The cubic root of 20441016 is about 273.4224430196.

Adding to 20441016 its reverse (61014402), we get a palindrome (81455418).

The spelling of 20441016 in words is "twenty million, four hundred forty-one thousand, sixteen".