28348188 has 24 divisors (see below), whose sum is σ = 72159360. Its totient is φ = 8590320.

The previous prime is 28348183. The next prime is 28348189. The reversal of 28348188 is 88184382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28348183) 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, 107248 + ... + 107511.

It is an arithmetic number, because the mean of its divisors is an integer number (3006640).

Almost surely, 2^28348188 is an apocalyptic number.

It is an amenable number.

28348188 is an abundant number, since it is smaller than the sum of its proper divisors (43811172).

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

28348188 is a wasteful number, since it uses less digits than its factorization.

28348188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214777 (or 214775 counting only the distinct ones).

The product of its digits is 98304, while the sum is 42.

The square root of 28348188 is about 5324.3016443474. The cubic root of 28348188 is about 304.9124105738.

The spelling of 28348188 in words is "twenty-eight million, three hundred forty-eight thousand, one hundred eighty-eight".