28262328 has 32 divisors (see below), whose sum is σ = 72936960. Its totient is φ = 9116640.

The previous prime is 28262321. The next prime is 28262363. The reversal of 28262328 is 82326282.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28262321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18250 + ... + 19737.

It is an arithmetic number, because the mean of its divisors is an integer number (2279280).

Almost surely, 2^28262328 is an apocalyptic number.

It is an amenable number.

28262328 is an abundant number, since it is smaller than the sum of its proper divisors (44674632).

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

28262328 is a wasteful number, since it uses less digits than its factorization.

28262328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38027 (or 38023 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 28262328 is about 5316.2325005590. The cubic root of 28262328 is about 304.6042632484.

The spelling of 28262328 in words is "twenty-eight million, two hundred sixty-two thousand, three hundred twenty-eight".