28244316 has 24 divisors (see below), whose sum is σ = 66253824. Its totient is φ = 9364720.

The previous prime is 28244311. The next prime is 28244323. The reversal of 28244316 is 61344282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28244311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3870 + ... + 8453.

It is an arithmetic number, because the mean of its divisors is an integer number (2760576).

Almost surely, 2^28244316 is an apocalyptic number.

It is an amenable number.

28244316 is an abundant number, since it is smaller than the sum of its proper divisors (38009508).

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

28244316 is a wasteful number, since it uses less digits than its factorization.

28244316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12521 (or 12519 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 28244316 is about 5314.5381737269. The cubic root of 28244316 is about 304.5395398947.

Adding to 28244316 its reverse (61344282), we get a palindrome (89588598).

It can be divided in two parts, 2824 and 4316, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 28244316 in words is "twenty-eight million, two hundred forty-four thousand, three hundred sixteen".