20088269 has 4 divisors (see below), whose sum is σ = 20961696. Its totient is φ = 19214844.

The previous prime is 20088259. The next prime is 20088293. The reversal of 20088269 is 96288002.

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 an emirpimes, since its reverse is a distinct semiprime: 96288002 = 2 ⋅48144001.

It is not a de Polignac number, because 20088269 - 2⁴ = 20088253 is a prime.

It is a super-2 number, since 2×20088269² = 807077102832722, 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 (20088209) 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, 436679 + ... + 436724.

It is an arithmetic number, because the mean of its divisors is an integer number (5240424).

Almost surely, 2^20088269 is an apocalyptic number.

It is an amenable number.

20088269 is a deficient number, since it is larger than the sum of its proper divisors (873427).

20088269 is an equidigital number, since it uses as much as digits as its factorization.

20088269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873426.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 20088269 is about 4481.9938643421. The cubic root of 20088269 is about 271.8405071668.

The spelling of 20088269 in words is "twenty million, eighty-eight thousand, two hundred sixty-nine".