28492266 has 32 divisors (see below), whose sum is σ = 62371008. Its totient is φ = 8605440.

The previous prime is 28492249. The next prime is 28492271. The reversal of 28492266 is 66229482.

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 15 ways as a sum of consecutive naturals, for example, 28080 + ... + 29076.

It is an arithmetic number, because the mean of its divisors is an integer number (1949094).

Almost surely, 2^28492266 is an apocalyptic number.

28492266 is an abundant number, since it is smaller than the sum of its proper divisors (33878742).

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

28492266 is a wasteful number, since it uses less digits than its factorization.

28492266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446.

The product of its digits is 82944, while the sum is 39.

The square root of 28492266 is about 5337.8147214005. The cubic root of 28492266 is about 305.4281043677.

It can be divided in two parts, 2849 and 2266, that added together give a palindrome (5115).

The spelling of 28492266 in words is "twenty-eight million, four hundred ninety-two thousand, two hundred sixty-six".