28492226 has 12 divisors (see below), whose sum is σ = 49716198. Its totient is φ = 12210912.

The previous prime is 28492213. The next prime is 28492249. The reversal of 28492226 is 62229482.

It can be written as a sum of positive squares in only one way, i.e., 27931225 + 561001 = 5285^2 + 749^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 145271 + ... + 145466.

Almost surely, 2^28492226 is an apocalyptic number.

28492226 is a deficient number, since it is larger than the sum of its proper divisors (21223972).

28492226 is a wasteful number, since it uses less digits than its factorization.

28492226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290753 (or 290746 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 28492226 is about 5337.8109745475. The cubic root of 28492226 is about 305.4279614385.

The spelling of 28492226 in words is "twenty-eight million, four hundred ninety-two thousand, two hundred twenty-six".