28246369 has 16 divisors (see below), whose sum is σ = 31363200. Its totient is φ = 25318656.

The previous prime is 28246349. The next prime is 28246373. The reversal of 28246369 is 96364282.

It is a cyclic number.

It is not a de Polignac number, because 28246369 - 2¹⁹ = 27722081 is a prime.

It is a super-2 number, since 2×28246369² = 1595714723368322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28246349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47337 + ... + 47929.

It is an arithmetic number, because the mean of its divisors is an integer number (1960200).

Almost surely, 2^28246369 is an apocalyptic number.

It is an amenable number.

28246369 is a deficient number, since it is larger than the sum of its proper divisors (3116831).

28246369 is a wasteful number, since it uses less digits than its factorization.

28246369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744.

The product of its digits is 124416, while the sum is 40.

The square root of 28246369 is about 5314.7313196435. The cubic root of 28246369 is about 304.5469184239.

The spelling of 28246369 in words is "twenty-eight million, two hundred forty-six thousand, three hundred sixty-nine".