20071441 has 8 divisors (see below), whose sum is σ = 22887144. Its totient is φ = 17437440.

The previous prime is 20071417. The next prime is 20071481. The reversal of 20071441 is 14417002.

It can be written as a sum of positive squares in 4 ways, for example, as 3294225 + 16777216 = 1815^2 + 4096^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20071441 - 2⁵ = 20071409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20071481) 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, 45190 + ... + 45631.

It is an arithmetic number, because the mean of its divisors is an integer number (2860893).

Almost surely, 2^20071441 is an apocalyptic number.

It is an amenable number.

20071441 is a deficient number, since it is larger than the sum of its proper divisors (2815703).

20071441 is a wasteful number, since it uses less digits than its factorization.

20071441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90851.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 20071441 is about 4480.1161815292. The cubic root of 20071441 is about 271.7645787727.

Adding to 20071441 its reverse (14417002), we get a palindrome (34488443).

The spelling of 20071441 in words is "twenty million, seventy-one thousand, four hundred forty-one".