28118148 has 12 divisors (see below), whose sum is σ = 65609040. Its totient is φ = 9372712.

The previous prime is 28118141. The next prime is 28118149. The reversal of 28118148 is 84181182.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (28118141) 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, 1171578 + ... + 1171601.

It is an arithmetic number, because the mean of its divisors is an integer number (5467420).

Almost surely, 2^28118148 is an apocalyptic number.

It is an amenable number.

28118148 is an abundant number, since it is smaller than the sum of its proper divisors (37490892).

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

28118148 is a wasteful number, since it uses less digits than its factorization.

28118148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343186 (or 2343184 counting only the distinct ones).

The product of its digits is 4096, while the sum is 33.

The square root of 28118148 is about 5302.6548067925. The cubic root of 28118148 is about 304.0854013295.

The spelling of 28118148 in words is "twenty-eight million, one hundred eighteen thousand, one hundred forty-eight".