28882272 has 24 divisors (see below), whose sum is σ = 75816216. Its totient is φ = 9627392.

The previous prime is 28882267. The next prime is 28882277. The reversal of 28882272 is 27228882.

It is an interprime number because it is at equal distance from previous prime (28882267) and next prime (28882277).

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 28882272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28882277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150333 + ... + 150524.

It is an arithmetic number, because the mean of its divisors is an integer number (3159009).

Almost surely, 2^28882272 is an apocalyptic number.

It is an amenable number.

28882272 is an abundant number, since it is smaller than the sum of its proper divisors (46933944).

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

28882272 is a wasteful number, since it uses less digits than its factorization.

28882272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300870 (or 300862 counting only the distinct ones).

The product of its digits is 57344, while the sum is 39.

The square root of 28882272 is about 5374.2229205719. Note that the first 3 decimals coincide. The cubic root of 28882272 is about 306.8153742125.

The spelling of 28882272 in words is "twenty-eight million, eight hundred eighty-two thousand, two hundred seventy-two".