20941441 has 4 divisors (see below), whose sum is σ = 21148884. Its totient is φ = 20734000.

The previous prime is 20941397. The next prime is 20941457. The reversal of 20941441 is 14414902.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20295025 + 646416 = 4505^2 + 804^2 .

It is a cyclic number.

It is not a de Polignac number, because 20941441 - 2⁷ = 20941313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20941471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103570 + ... + 103771.

It is an arithmetic number, because the mean of its divisors is an integer number (5287221).

Almost surely, 2^20941441 is an apocalyptic number.

It is an amenable number.

20941441 is a deficient number, since it is larger than the sum of its proper divisors (207443).

20941441 is a wasteful number, since it uses less digits than its factorization.

20941441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207442.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20941441 is about 4576.1819238313. The cubic root of 20941441 is about 275.6357347094.

The spelling of 20941441 in words is "twenty million, nine hundred forty-one thousand, four hundred forty-one".