28111150 has 24 divisors (see below), whose sum is σ = 54092520. Its totient is φ = 10856160.

The previous prime is 28111133. The next prime is 28111151. The reversal of 28111150 is 5111182.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28111151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8244 + ... + 11143.

It is an arithmetic number, because the mean of its divisors is an integer number (2253855).

Almost surely, 2^28111150 is an apocalyptic number.

28111150 is a deficient number, since it is larger than the sum of its proper divisors (25981370).

28111150 is a wasteful number, since it uses less digits than its factorization.

28111150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19428 (or 19423 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 19.

The square root of 28111150 is about 5301.9949075796. The cubic root of 28111150 is about 304.0601724726.

The spelling of 28111150 in words is "twenty-eight million, one hundred eleven thousand, one hundred fifty".