20702269 has 8 divisors (see below), whose sum is σ = 23687360. Its totient is φ = 17724096.

The previous prime is 20702257. The next prime is 20702281. The reversal of 20702269 is 96220702.

It is an interprime number because it is at equal distance from previous prime (20702257) and next prime (20702281).

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

It is a cyclic number.

It is not a de Polignac number, because 20702269 - 2⁹ = 20701757 is a prime.

It is a super-2 number, since 2×20702269² = 857167883496722, 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 (20702219) 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, 10117 + ... + 11989.

It is an arithmetic number, because the mean of its divisors is an integer number (2960920).

Almost surely, 2^20702269 is an apocalyptic number.

It is an amenable number.

20702269 is a deficient number, since it is larger than the sum of its proper divisors (2985091).

20702269 is a wasteful number, since it uses less digits than its factorization.

20702269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 20702269 is about 4549.9746153138. The cubic root of 20702269 is about 274.5823699419.

The spelling of 20702269 in words is "twenty million, seven hundred two thousand, two hundred sixty-nine".