28107148 has 24 divisors (see below), whose sum is σ = 51105600. Its totient is φ = 13509888.

The previous prime is 28107139. The next prime is 28107151. The reversal of 28107148 is 84170182.

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, 38733 + ... + 39451.

It is an arithmetic number, because the mean of its divisors is an integer number (2129400).

Almost surely, 2^28107148 is an apocalyptic number.

It is an amenable number.

28107148 is a deficient number, since it is larger than the sum of its proper divisors (22998452).

28107148 is a wasteful number, since it uses less digits than its factorization.

28107148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 28107148 is about 5301.6174890311. The cubic root of 28107148 is about 304.0457427705.

The spelling of 28107148 in words is "twenty-eight million, one hundred seven thousand, one hundred forty-eight".