20441512 has 64 divisors (see below), whose sum is σ = 48343680. Its totient is φ = 7886592.

The previous prime is 20441471. The next prime is 20441563. The reversal of 20441512 is 21514402.

It is a super-2 number, since 2×20441512² = 835710825692288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20441512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30978 + ... + 31630.

It is an arithmetic number, because the mean of its divisors is an integer number (755370).

Almost surely, 2^20441512 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 20441512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24171840).

20441512 is an abundant number, since it is smaller than the sum of its proper divisors (27902168).

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

20441512 is a wasteful number, since it uses less digits than its factorization.

20441512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 20441512 is about 4521.2290364457. The cubic root of 20441512 is about 273.4246545280.

Adding to 20441512 its reverse (21514402), we get a palindrome (41955914).

The spelling of 20441512 in words is "twenty million, four hundred forty-one thousand, five hundred twelve".