28194956 has 12 divisors (see below), whose sum is σ = 49534968. Its totient is φ = 14042112.

The previous prime is 28194953. The next prime is 28194961. The reversal of 28194956 is 65949182.

It is not an unprimeable number, because it can be changed into a prime (28194953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12686 + ... + 14741.

It is an arithmetic number, because the mean of its divisors is an integer number (4127914).

Almost surely, 2^28194956 is an apocalyptic number.

It is an amenable number.

28194956 is a deficient number, since it is larger than the sum of its proper divisors (21340012).

28194956 is a wasteful number, since it uses less digits than its factorization.

28194956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27688 (or 27686 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 28194956 is about 5309.8922776267. The cubic root of 28194956 is about 304.3620311773.

The spelling of 28194956 in words is "twenty-eight million, one hundred ninety-four thousand, nine hundred fifty-six".