28248936 has 64 divisors (see below), whose sum is σ = 74680320. Its totient is φ = 8890560.

The previous prime is 28248911. The next prime is 28248937. The reversal of 28248936 is 63984282.

It is not an unprimeable number, because it can be changed into a prime (28248937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31551 + ... + 32433.

It is an arithmetic number, because the mean of its divisors is an integer number (1166880).

Almost surely, 2^28248936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28248936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37340160).

28248936 is an abundant number, since it is smaller than the sum of its proper divisors (46431384).

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

28248936 is a wasteful number, since it uses less digits than its factorization.

28248936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 962 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 28248936 is about 5314.9728127244. The cubic root of 28248936 is about 304.5561437779.

The spelling of 28248936 in words is "twenty-eight million, two hundred forty-eight thousand, nine hundred thirty-six".