28361850 has 48 divisors (see below), whose sum is σ = 76736160. Its totient is φ = 6875200.

The previous prime is 28361849. The next prime is 28361857. The reversal of 28361850 is 5816382.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (28361857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6945 + ... + 10244.

It is an arithmetic number, because the mean of its divisors is an integer number (1598670).

Almost surely, 2^28361850 is an apocalyptic number.

28361850 is an abundant number, since it is smaller than the sum of its proper divisors (48374310).

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

28361850 is a wasteful number, since it uses less digits than its factorization.

28361850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17215 (or 17210 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 28361850 is about 5325.5844749661. The cubic root of 28361850 is about 304.9613854187.

The spelling of 28361850 in words is "twenty-eight million, three hundred sixty-one thousand, eight hundred fifty".