28268910 has 48 divisors (see below), whose sum is σ = 76040640. Its totient is φ = 7277760.

The previous prime is 28268899. The next prime is 28268917. The reversal of 28268910 is 1986282.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28268917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2806 + ... + 8025.

It is an arithmetic number, because the mean of its divisors is an integer number (1584180).

Almost surely, 2^28268910 is an apocalyptic number.

28268910 is an abundant number, since it is smaller than the sum of its proper divisors (47771730).

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

28268910 is a wasteful number, since it uses less digits than its factorization.

28268910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10873 (or 10870 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 28268910 is about 5316.8515119382. The cubic root of 28268910 is about 304.6279077932.

The spelling of 28268910 in words is "twenty-eight million, two hundred sixty-eight thousand, nine hundred ten".