28012368 has 40 divisors (see below), whose sum is σ = 72717568. Its totient is φ = 9292032.

The previous prime is 28012357. The next prime is 28012381. The reversal of 28012368 is 86321082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9396 + ... + 12012.

Almost surely, 2^28012368 is an apocalyptic number.

It is an amenable number.

28012368 is an abundant number, since it is smaller than the sum of its proper divisors (44705200).

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

28012368 is a wasteful number, since it uses less digits than its factorization.

28012368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851 (or 2845 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 28012368 is about 5292.6711592541. The cubic root of 28012368 is about 303.7036007638.

The spelling of 28012368 in words is "twenty-eight million, twelve thousand, three hundred sixty-eight".