20204469 has 12 divisors (see below), whose sum is σ = 29318016. Its totient is φ = 13407912.

The previous prime is 20204417. The next prime is 20204477. The reversal of 20204469 is 96440202.

It is not a de Polignac number, because 20204469 - 2⁷ = 20204341 is a prime.

It is a super-2 number, since 2×20204469² = 816441135143922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20204269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3027 + ... + 7040.

It is an arithmetic number, because the mean of its divisors is an integer number (2443168).

Almost surely, 2^20204469 is an apocalyptic number.

It is an amenable number.

20204469 is a deficient number, since it is larger than the sum of its proper divisors (9113547).

20204469 is a wasteful number, since it uses less digits than its factorization.

20204469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10296 (or 10293 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20204469 is about 4494.9381530784. The cubic root of 20204469 is about 272.3636508906.

The spelling of 20204469 in words is "twenty million, two hundred four thousand, four hundred sixty-nine".