20044471 has 4 divisors (see below), whose sum is σ = 20054944. Its totient is φ = 20034000.

The previous prime is 20044463. The next prime is 20044499. The reversal of 20044471 is 17444002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 17444002 = 2 ⋅8722001.

It is a cyclic number.

It is not a de Polignac number, because 20044471 - 2³ = 20044463 is a prime.

It is a super-3 number, since 3×20044471³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20041471) 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, 1455 + ... + 6496.

It is an arithmetic number, because the mean of its divisors is an integer number (5013736).

Almost surely, 2^20044471 is an apocalyptic number.

20044471 is a deficient number, since it is larger than the sum of its proper divisors (10473).

20044471 is an equidigital number, since it uses as much as digits as its factorization.

20044471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10472.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 20044471 is about 4477.1052031419. The cubic root of 20044471 is about 271.6428008359.

Adding to 20044471 its reverse (17444002), we get a palindrome (37488473).

The spelling of 20044471 in words is "twenty million, forty-four thousand, four hundred seventy-one".