28269824 has 36 divisors (see below), whose sum is σ = 61565280. Its totient is φ = 12848640.

The previous prime is 28269823. The next prime is 28269841. The reversal of 28269824 is 42896282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28269823) 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, 2204 + ... + 7835.

Almost surely, 2^28269824 is an apocalyptic number.

It is an amenable number.

28269824 is an abundant number, since it is smaller than the sum of its proper divisors (33295456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28269824 is a wasteful number, since it uses less digits than its factorization.

28269824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10066 (or 10052 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 28269824 is about 5316.9374643680. The cubic root of 28269824 is about 304.6311908688.

The spelling of 28269824 in words is "twenty-eight million, two hundred sixty-nine thousand, eight hundred twenty-four".