12273198 has 32 divisors (see below), whose sum is σ = 28444416. Its totient is φ = 3457728.

The previous prime is 12273187. The next prime is 12273199. The reversal of 12273198 is 89137221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12273199) by changing a digit.

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, 1065 + ... + 5067.

It is an arithmetic number, because the mean of its divisors is an integer number (888888).

Almost surely, 2^12273198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12273198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14222208).

12273198 is an abundant number, since it is smaller than the sum of its proper divisors (16171218).

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

12273198 is a wasteful number, since it uses less digits than its factorization.

12273198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088.

The product of its digits is 6048, while the sum is 33.

The square root of 12273198 is about 3503.3124325415. The cubic root of 12273198 is about 230.6672369965.

The spelling of 12273198 in words is "twelve million, two hundred seventy-three thousand, one hundred ninety-eight".