12845224 has 32 divisors (see below), whose sum is σ = 28725120. Its totient is φ = 5265216.

The previous prime is 12845221. The next prime is 12845227. The reversal of 12845224 is 42254821.

It is an interprime number because it is at equal distance from previous prime (12845221) and next prime (12845227).

It is a super-2 number, since 2×12845224² = 329999559220352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 12845192 and 12845201.

It is not an unprimeable number, because it can be changed into a prime (12845221) 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, 3699 + ... + 6274.

It is an arithmetic number, because the mean of its divisors is an integer number (897660).

Almost surely, 2^12845224 is an apocalyptic number.

12845224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12845224 is an abundant number, since it is smaller than the sum of its proper divisors (15879896).

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

12845224 is a wasteful number, since it uses less digits than its factorization.

12845224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10009 (or 10005 counting only the distinct ones).

The product of its digits is 5120, while the sum is 28.

The square root of 12845224 is about 3584.0234374234. The cubic root of 12845224 is about 234.1965864487.

The spelling of 12845224 in words is "twelve million, eight hundred forty-five thousand, two hundred twenty-four".