28524312 has 112 divisors (see below), whose sum is σ = 82499640. Its totient is φ = 9237888.

The previous prime is 28524311. The next prime is 28524323. The reversal of 28524312 is 21342582.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28524311) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 390708 + ... + 390780.

Almost surely, 2^28524312 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 28524312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41249820).

28524312 is an abundant number, since it is smaller than the sum of its proper divisors (53975328).

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

28524312 is an equidigital number, since it uses as much as digits as its factorization.

28524312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 145 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 28524312 is about 5340.8156680417. The cubic root of 28524312 is about 305.5425691352.

Adding to 28524312 its reverse (21342582), we get a palindrome (49866894).

The spelling of 28524312 in words is "twenty-eight million, five hundred twenty-four thousand, three hundred twelve".