13092228 has 36 divisors (see below), whose sum is σ = 33992140. Its totient is φ = 4245696.

The previous prime is 13092223. The next prime is 13092257. The reversal of 13092228 is 82229031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11819844 + 1272384 = 3438^2 + 1128^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (13092223) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3583 + ... + 6246.

Almost surely, 2^13092228 is an apocalyptic number.

13092228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13092228 is an abundant number, since it is smaller than the sum of its proper divisors (20899912).

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

13092228 is a wasteful number, since it uses less digits than its factorization.

13092228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9876 (or 9871 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13092228 is about 3618.3183939504. The cubic root of 13092228 is about 235.6882074258.

The spelling of 13092228 in words is "thirteen million, ninety-two thousand, two hundred twenty-eight".