28194030 has 24 divisors (see below), whose sum is σ = 73304712. Its totient is φ = 7518384.

The previous prime is 28194011. The next prime is 28194059. The reversal of 28194030 is 3049182.

It is a junction number, because it is equal to n+sod(n) for n = 28193985 and 28194003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156544 + ... + 156723.

It is an arithmetic number, because the mean of its divisors is an integer number (3054363).

Almost surely, 2^28194030 is an apocalyptic number.

28194030 is an abundant number, since it is smaller than the sum of its proper divisors (45110682).

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

28194030 is a wasteful number, since it uses less digits than its factorization.

28194030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313280 (or 313277 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 28194030 is about 5309.8050811682. The cubic root of 28194030 is about 304.3586991117.

The spelling of 28194030 in words is "twenty-eight million, one hundred ninety-four thousand, thirty".