12298278 has 16 divisors (see below), whose sum is σ = 25196976. Its totient is φ = 3999360.

The previous prime is 12298277. The next prime is 12298283. The reversal of 12298278 is 87289221.

12298278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12298277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24751 + ... + 25242.

It is an arithmetic number, because the mean of its divisors is an integer number (1574811).

Almost surely, 2^12298278 is an apocalyptic number.

12298278 is an abundant number, since it is smaller than the sum of its proper divisors (12898698).

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

12298278 is a wasteful number, since it uses less digits than its factorization.

12298278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50039.

The product of its digits is 32256, while the sum is 39.

The square root of 12298278 is about 3506.8900752661. The cubic root of 12298278 is about 230.8242511715.

The spelling of 12298278 in words is "twelve million, two hundred ninety-eight thousand, two hundred seventy-eight".