28382312 has 32 divisors (see below), whose sum is σ = 61029120. Its totient is φ = 12121920.

The previous prime is 28382311. The next prime is 28382317. The reversal of 28382312 is 21328382.

It is not an unprimeable number, because it can be changed into a prime (28382311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19862 + ... + 21242.

It is an arithmetic number, because the mean of its divisors is an integer number (1907160).

Almost surely, 2^28382312 is an apocalyptic number.

It is an amenable number.

28382312 is an abundant number, since it is smaller than the sum of its proper divisors (32646808).

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

28382312 is a wasteful number, since it uses less digits than its factorization.

28382312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761 (or 1757 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 28382312 is about 5327.5052322827. The cubic root of 28382312 is about 305.0347071496.

The spelling of 28382312 in words is "twenty-eight million, three hundred eighty-two thousand, three hundred twelve".