28119194 has 16 divisors (see below), whose sum is σ = 43704360. Its totient is φ = 13559040.

The previous prime is 28119151. The next prime is 28119199. The reversal of 28119194 is 49191182.

It can be written as a sum of positive squares in 4 ways, for example, as 21743569 + 6375625 = 4663^2 + 2525^2 .

It is not an unprimeable number, because it can be changed into a prime (28119199) by changing a digit.

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, 5372 + ... + 9224.

Almost surely, 2^28119194 is an apocalyptic number.

28119194 is a deficient number, since it is larger than the sum of its proper divisors (15585166).

28119194 is a wasteful number, since it uses less digits than its factorization.

28119194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985.

The product of its digits is 5184, while the sum is 35.

The square root of 28119194 is about 5302.7534357162. The cubic root of 28119194 is about 304.0891719594.

The spelling of 28119194 in words is "twenty-eight million, one hundred nineteen thousand, one hundred ninety-four".