20441265 has 16 divisors (see below), whose sum is σ = 35222208. Its totient is φ = 10063296.

The previous prime is 20441261. The next prime is 20441269. The reversal of 20441265 is 56214402.

It is an interprime number because it is at equal distance from previous prime (20441261) and next prime (20441269).

It is not a de Polignac number, because 20441265 - 2² = 20441261 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20441261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52219 + ... + 52608.

It is an arithmetic number, because the mean of its divisors is an integer number (2201388).

Almost surely, 2^20441265 is an apocalyptic number.

It is an amenable number.

20441265 is a deficient number, since it is larger than the sum of its proper divisors (14780943).

20441265 is a wasteful number, since it uses less digits than its factorization.

20441265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104848.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20441265 is about 4521.2017207818. The cubic root of 20441265 is about 273.4235532370.

Adding to 20441265 its reverse (56214402), we get a palindrome (76655667).

It can be divided in two parts, 20441 and 265, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 20441265 in words is "twenty million, four hundred forty-one thousand, two hundred sixty-five".