28368788 has 48 divisors (see below), whose sum is σ = 58988160. Its totient is φ = 11684736.

The previous prime is 28368787. The next prime is 28368811. The reversal of 28368788 is 88786382.

Its product of digits (1032192) is a multiple of the sum of its prime factors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28368787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143906 + ... + 144102.

It is an arithmetic number, because the mean of its divisors is an integer number (1228920).

Almost surely, 2^28368788 is an apocalyptic number.

28368788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28368788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29494080).

28368788 is an abundant number, since it is smaller than the sum of its proper divisors (30619372).

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

28368788 is a wasteful number, since it uses less digits than its factorization.

28368788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 382 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 50.

The square root of 28368788 is about 5326.2358190377. The cubic root of 28368788 is about 304.9862503880.

It can be divided in two parts, 28368 and 788, that multiplied together give a square (22353984 = 4728²).

The spelling of 28368788 in words is "twenty-eight million, three hundred sixty-eight thousand, seven hundred eighty-eight".