20369069 has 4 divisors (see below), whose sum is σ = 23278944. Its totient is φ = 17459196.

The previous prime is 20369051. The next prime is 20369071. The reversal of 20369069 is 96096302.

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.

It is a cyclic number.

It is not a de Polignac number, because 20369069 - 2²⁰ = 19320493 is a prime.

It is a super-2 number, since 2×20369069² = 829797943853522, 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 (20369369) 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, 1454927 + ... + 1454940.

It is an arithmetic number, because the mean of its divisors is an integer number (5819736).

Almost surely, 2^20369069 is an apocalyptic number.

It is an amenable number.

20369069 is a deficient number, since it is larger than the sum of its proper divisors (2909875).

20369069 is an equidigital number, since it uses as much as digits as its factorization.

20369069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909874.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 20369069 is about 4513.2104980823. The cubic root of 20369069 is about 273.1012742195.

The spelling of 20369069 in words is "twenty million, three hundred sixty-nine thousand, sixty-nine".