20036269 has 6 divisors (see below), whose sum is σ = 22023470. Its totient is φ = 18214680.

The previous prime is 20036257. The next prime is 20036273. The reversal of 20036269 is 96263002.

It can be written as a sum of positive squares in only one way, i.e., 17015625 + 3020644 = 4125^2 + 1738^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20036269 is a prime.

It is a super-2 number, since 2×20036269² = 802904150880722, 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 (20036239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82674 + ... + 82915.

Almost surely, 2^20036269 is an apocalyptic number.

It is an amenable number.

20036269 is a deficient number, since it is larger than the sum of its proper divisors (1987201).

20036269 is a wasteful number, since it uses less digits than its factorization.

20036269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165611 (or 165600 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 20036269 is about 4476.1891157546. The cubic root of 20036269 is about 271.6057445953.

The spelling of 20036269 in words is "twenty million, thirty-six thousand, two hundred sixty-nine".