28626208 has 24 divisors (see below), whose sum is σ = 60693948. Its totient is φ = 13211904.

The previous prime is 28626193. The next prime is 28626209. The reversal of 28626208 is 80262682.

It can be written as a sum of positive squares in 2 ways, for example, as 28005264 + 620944 = 5292^2 + 788^2 .

It is not an unprimeable number, because it can be changed into a prime (28626209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33991 + ... + 34822.

Almost surely, 2^28626208 is an apocalyptic number.

It is an amenable number.

28626208 is an abundant number, since it is smaller than the sum of its proper divisors (32067740).

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

28626208 is a wasteful number, since it uses less digits than its factorization.

28626208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68836 (or 68828 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 28626208 is about 5350.3465308333. The cubic root of 28626208 is about 305.9059616770.

The spelling of 28626208 in words is "twenty-eight million, six hundred twenty-six thousand, two hundred eight".