20441242 has 16 divisors (see below), whose sum is σ = 33345000. Its totient is φ = 9358848.

The previous prime is 20441233. The next prime is 20441249. The reversal of 20441242 is 24214402.

It can be written as a sum of positive squares in 4 ways, for example, as 20421361 + 19881 = 4519^2 + 141^2 .

It is not an unprimeable number, because it can be changed into a prime (20441249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6867 + ... + 9382.

Almost surely, 2^20441242 is an apocalyptic number.

20441242 is a deficient number, since it is larger than the sum of its proper divisors (12903758).

20441242 is a wasteful number, since it uses less digits than its factorization.

20441242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16305.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 20441242 is about 4521.1991772095. The cubic root of 20441242 is about 273.4234506871.

Adding to 20441242 its reverse (24214402), we get a palindrome (44655644).

The spelling of 20441242 in words is "twenty million, four hundred forty-one thousand, two hundred forty-two".