28227892 has 48 divisors (see below), whose sum is σ = 63278208. Its totient is φ = 10696320.

The previous prime is 28227889. The next prime is 28227893. The reversal of 28227892 is 29872282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28227893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10158 + ... + 12634.

It is an arithmetic number, because the mean of its divisors is an integer number (1318296).

Almost surely, 2^28227892 is an apocalyptic number.

28227892 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28227892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31639104).

28227892 is an abundant number, since it is smaller than the sum of its proper divisors (35050316).

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

28227892 is a wasteful number, since it uses less digits than its factorization.

28227892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536 (or 2534 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 28227892 is about 5312.9927536182. The cubic root of 28227892 is about 304.4804987857.

The spelling of 28227892 in words is "twenty-eight million, two hundred twenty-seven thousand, eight hundred ninety-two".