28868382 has 12 divisors (see below), whose sum is σ = 62548200. Its totient is φ = 9622788.

The previous prime is 28868377. The next prime is 28868383. The reversal of 28868382 is 28386882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28868383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 801882 + ... + 801917.

It is an arithmetic number, because the mean of its divisors is an integer number (5212350).

Almost surely, 2^28868382 is an apocalyptic number.

28868382 is an abundant number, since it is smaller than the sum of its proper divisors (33679818).

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

28868382 is a wasteful number, since it uses less digits than its factorization.

28868382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603807 (or 1603804 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 28868382 is about 5372.9304853125. The cubic root of 28868382 is about 306.7661819964.

The spelling of 28868382 in words is "twenty-eight million, eight hundred sixty-eight thousand, three hundred eighty-two".