28150 has 12 divisors (see below), whose sum is σ = 52452. Its totient is φ = 11240.

The previous prime is 28123. The next prime is 28151. The reversal of 28150 is 5182.

It is a happy number.

28150 is nontrivially palindromic in base 8.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28151) by changing a digit.

28150 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 232 + ... + 331.

It is an arithmetic number, because the mean of its divisors is an integer number (4371).

2²⁸¹⁵⁰ is an apocalyptic number.

28150 is a deficient number, since it is larger than the sum of its proper divisors (24302).

28150 is a wasteful number, since it uses less digits than its factorization.

28150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 28150 is about 167.7796173556. The cubic root of 28150 is about 30.4200179790.

The spelling of 28150 in words is "twenty-eight thousand, one hundred fifty".