28546236 has 48 divisors (see below), whose sum is σ = 74770080. Its totient is φ = 9417600.

The previous prime is 28546229. The next prime is 28546253. The reversal of 28546236 is 63264582.

28546236 is a `hidden beast` number, since 28 + 5 + 4 + 623 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28546236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9600 + ... + 12216.

It is an arithmetic number, because the mean of its divisors is an integer number (1557710).

Almost surely, 2^28546236 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 28546236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37385040).

28546236 is an abundant number, since it is smaller than the sum of its proper divisors (46223844).

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

28546236 is a wasteful number, since it uses less digits than its factorization.

28546236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731 (or 2723 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 28546236 is about 5342.8677692790. The cubic root of 28546236 is about 305.6208298577.

It can be divided in two parts, 28546 and 236, that added together give a palindrome (28782).

The spelling of 28546236 in words is "twenty-eight million, five hundred forty-six thousand, two hundred thirty-six".