28134194 has 12 divisors (see below), whose sum is σ = 46386942. Its totient is φ = 12788160.

The previous prime is 28134181. The next prime is 28134217. The reversal of 28134194 is 49143182.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27300625 + 833569 = 5225^2 + 913^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28134194.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57887 + ... + 58370.

Almost surely, 2^28134194 is an apocalyptic number.

28134194 is a deficient number, since it is larger than the sum of its proper divisors (18252748).

28134194 is a wasteful number, since it uses less digits than its factorization.

28134194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116281 (or 116270 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 28134194 is about 5304.1676067032. The cubic root of 28134194 is about 304.1432338071.

It can be divided in two parts, 2813 and 4194, that added together give a palindrome (7007).

The spelling of 28134194 in words is "twenty-eight million, one hundred thirty-four thousand, one hundred ninety-four".