28841236 has 12 divisors (see below), whose sum is σ = 50962912. Its totient is φ = 14280408.

The previous prime is 28841233. The next prime is 28841273. The reversal of 28841236 is 63214882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28841233) 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, 34590 + ... + 35413.

Almost surely, 2^28841236 is an apocalyptic number.

It is an amenable number.

28841236 is a deficient number, since it is larger than the sum of its proper divisors (22121676).

28841236 is a wasteful number, since it uses less digits than its factorization.

28841236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70110 (or 70108 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 28841236 is about 5370.4037092196. The cubic root of 28841236 is about 306.6699973383.

The spelling of 28841236 in words is "twenty-eight million, eight hundred forty-one thousand, two hundred thirty-six".