28207266 has 16 divisors (see below), whose sum is σ = 57129600. Its totient is φ = 9283248.

The previous prime is 28207261. The next prime is 28207327. The reversal of 28207266 is 66270282.

It is not an unprimeable number, because it can be changed into a prime (28207261) 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, 29281 + ... + 30228.

It is an arithmetic number, because the mean of its divisors is an integer number (3570600).

Almost surely, 2^28207266 is an apocalyptic number.

28207266 is an abundant number, since it is smaller than the sum of its proper divisors (28922334).

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

28207266 is a wasteful number, since it uses less digits than its factorization.

28207266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59593.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 28207266 is about 5311.0513083569. The cubic root of 28207266 is about 304.4063198491.

The spelling of 28207266 in words is "twenty-eight million, two hundred seven thousand, two hundred sixty-six".