28250134 has 16 divisors (see below), whose sum is σ = 46596096. Its totient is φ = 12738600.

The previous prime is 28250087. The next prime is 28250143. The reversal of 28250134 is 43105282.

It is a junction number, because it is equal to n+sod(n) for n = 28250099 and 28250108.

It is a congruent number.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 2262 + ... + 7849.

It is an arithmetic number, because the mean of its divisors is an integer number (2912256).

Almost surely, 2^28250134 is an apocalyptic number.

28250134 is a deficient number, since it is larger than the sum of its proper divisors (18345962).

28250134 is a wasteful number, since it uses less digits than its factorization.

28250134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10251.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 28250134 is about 5315.0855120120. The cubic root of 28250134 is about 304.5604489914.

The spelling of 28250134 in words is "twenty-eight million, two hundred fifty thousand, one hundred thirty-four".