28266356 has 12 divisors (see below), whose sum is σ = 51616992. Its totient is φ = 13518648.

The previous prime is 28266353. The next prime is 28266367. The reversal of 28266356 is 65366282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28266353) 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, 153530 + ... + 153713.

It is an arithmetic number, because the mean of its divisors is an integer number (4301416).

Almost surely, 2^28266356 is an apocalyptic number.

It is an amenable number.

28266356 is a deficient number, since it is larger than the sum of its proper divisors (23350636).

28266356 is a wasteful number, since it uses less digits than its factorization.

28266356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307270 (or 307268 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 28266356 is about 5316.6113267757. The cubic root of 28266356 is about 304.6187334846.

The spelling of 28266356 in words is "twenty-eight million, two hundred sixty-six thousand, three hundred fifty-six".