10091228 has 24 divisors (see below), whose sum is σ = 20463072. Its totient is φ = 4264704.

The previous prime is 10091203. The next prime is 10091231. The reversal of 10091228 is 82219001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425 + ... + 4512.

It is an arithmetic number, because the mean of its divisors is an integer number (852628).

Almost surely, 2^10091228 is an apocalyptic number.

It is an amenable number.

10091228 is an abundant number, since it is smaller than the sum of its proper divisors (10371844).

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

10091228 is a wasteful number, since it uses less digits than its factorization.

10091228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021 (or 5019 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 10091228 is about 3176.6693249377. The cubic root of 10091228 is about 216.0966360006.

The spelling of 10091228 in words is "ten million, ninety-one thousand, two hundred twenty-eight".