28316436 has 24 divisors (see below), whose sum is σ = 66579744. Its totient is φ = 9366240.

The previous prime is 28316429. The next prime is 28316437. The reversal of 28316436 is 63461382.

It is a junction number, because it is equal to n+sod(n) for n = 28316397 and 28316406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28316437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7435 + ... + 10578.

It is an arithmetic number, because the mean of its divisors is an integer number (2774156).

Almost surely, 2^28316436 is an apocalyptic number.

It is an amenable number.

28316436 is an abundant number, since it is smaller than the sum of its proper divisors (38263308).

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

28316436 is a wasteful number, since it uses less digits than its factorization.

28316436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18151 (or 18149 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 28316436 is about 5321.3190094186. The cubic root of 28316436 is about 304.7985268010.

The spelling of 28316436 in words is "twenty-eight million, three hundred sixteen thousand, four hundred thirty-six".