28955236 has 12 divisors (see below), whose sum is σ = 51502780. Its totient is φ = 14240160.

The previous prime is 28955203. The next prime is 28955249. The reversal of 28955236 is 63255982.

It can be written as a sum of positive squares in 2 ways, for example, as 396900 + 28558336 = 630^2 + 5344^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 59091 + ... + 59578.

Almost surely, 2^28955236 is an apocalyptic number.

It is an amenable number.

28955236 is a deficient number, since it is larger than the sum of its proper divisors (22547544).

28955236 is a wasteful number, since it uses less digits than its factorization.

28955236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118734 (or 118732 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 28955236 is about 5381.0069689604. The cubic root of 28955236 is about 307.0735216331.

The spelling of 28955236 in words is "twenty-eight million, nine hundred fifty-five thousand, two hundred thirty-six".