28532266 has 8 divisors (see below), whose sum is σ = 48912480. Its totient is φ = 12228108.

The previous prime is 28532261. The next prime is 28532267. The reversal of 28532266 is 66223582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28532261) 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, 1018996 + ... + 1019023.

It is an arithmetic number, because the mean of its divisors is an integer number (6114060).

Almost surely, 2^28532266 is an apocalyptic number.

28532266 is a deficient number, since it is larger than the sum of its proper divisors (20380214).

28532266 is a wasteful number, since it uses less digits than its factorization.

28532266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038028.

The product of its digits is 34560, while the sum is 34.

The square root of 28532266 is about 5341.5602589506. The cubic root of 28532266 is about 305.5709666619.

The spelling of 28532266 in words is "twenty-eight million, five hundred thirty-two thousand, two hundred sixty-six".