28134269 has 8 divisors (see below), whose sum is σ = 31357440. Its totient is φ = 25085376.

The previous prime is 28134251. The next prime is 28134283. The reversal of 28134269 is 96243182.

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 28134269 - 2⁸ = 28134013 is a prime.

It is a super-2 number, since 2×28134269² = 1583074184328722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28139269) 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, 43229 + ... + 43874.

It is an arithmetic number, because the mean of its divisors is an integer number (3919680).

Almost surely, 2^28134269 is an apocalyptic number.

It is an amenable number.

28134269 is a deficient number, since it is larger than the sum of its proper divisors (3223171).

28134269 is a wasteful number, since it uses less digits than its factorization.

28134269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87139.

The product of its digits is 20736, while the sum is 35.

The square root of 28134269 is about 5304.1746766109. The cubic root of 28134269 is about 304.1435040680.

The spelling of 28134269 in words is "twenty-eight million, one hundred thirty-four thousand, two hundred sixty-nine".