20044469 has 4 divisors (see below), whose sum is σ = 20053440. Its totient is φ = 20035500.

The previous prime is 20044463. The next prime is 20044499. The reversal of 20044469 is 96444002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20044469 - 2¹² = 20040373 is a prime.

It is a super-2 number, since 2×20044469² = 803561474983922, which contains 22 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 (20044463) 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, 1844 + ... + 6594.

It is an arithmetic number, because the mean of its divisors is an integer number (5013360).

Almost surely, 2^20044469 is an apocalyptic number.

It is an amenable number.

20044469 is a deficient number, since it is larger than the sum of its proper divisors (8971).

20044469 is an equidigital number, since it uses as much as digits as its factorization.

20044469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8970.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 20044469 is about 4477.1049797833. The cubic root of 20044469 is about 271.6427918012.

The spelling of 20044469 in words is "twenty million, forty-four thousand, four hundred sixty-nine".