20704269 has 8 divisors (see below), whose sum is σ = 27688960. Its totient is φ = 13761216.

The previous prime is 20704253. The next prime is 20704279. The reversal of 20704269 is 96240702.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20704269 - 2⁴ = 20704253 is a prime.

It is a super-2 number, since 2×20704269² = 857333509648722, 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 (20704219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9229 + ... + 11250.

It is an arithmetic number, because the mean of its divisors is an integer number (3461120).

Almost surely, 2^20704269 is an apocalyptic number.

It is an amenable number.

20704269 is a deficient number, since it is larger than the sum of its proper divisors (6984691).

20704269 is a wasteful number, since it uses less digits than its factorization.

20704269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20819.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 20704269 is about 4550.1943914519. The cubic root of 20704269 is about 274.5912119205.

The spelling of 20704269 in words is "twenty million, seven hundred four thousand, two hundred sixty-nine".