28253850 has 24 divisors (see below), whose sum is σ = 70069920. Its totient is φ = 7534320.

The previous prime is 28253831. The next prime is 28253857. The reversal of 28253850 is 5835282.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28253857) 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, 94030 + ... + 94329.

It is an arithmetic number, because the mean of its divisors is an integer number (2919580).

Almost surely, 2^28253850 is an apocalyptic number.

28253850 is an abundant number, since it is smaller than the sum of its proper divisors (41816070).

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

28253850 is a wasteful number, since it uses less digits than its factorization.

28253850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188374 (or 188369 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 28253850 is about 5315.4350715628. The cubic root of 28253850 is about 304.5738022851.

The spelling of 28253850 in words is "twenty-eight million, two hundred fifty-three thousand, eight hundred fifty".