28248472 has 32 divisors (see below), whose sum is σ = 60746400. Its totient is φ = 12063744.

The previous prime is 28248461. The next prime is 28248499. The reversal of 28248472 is 27484282.

It is a nude number because it is divisible by every one of its digits.

28248472 is a modest number, since divided by 8472 gives 2824 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19054 + ... + 20482.

It is an arithmetic number, because the mean of its divisors is an integer number (1898325).

Almost surely, 2^28248472 is an apocalyptic number.

It is an amenable number.

28248472 is an abundant number, since it is smaller than the sum of its proper divisors (32497928).

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

28248472 is a wasteful number, since it uses less digits than its factorization.

28248472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795 (or 1791 counting only the distinct ones).

The product of its digits is 57344, while the sum is 37.

The square root of 28248472 is about 5314.9291622749. The cubic root of 28248472 is about 304.5544762835.

The spelling of 28248472 in words is "twenty-eight million, two hundred forty-eight thousand, four hundred seventy-two".