12282340 has 72 divisors (see below), whose sum is σ = 30566592. Its totient is φ = 4132800.

The previous prime is 12282337. The next prime is 12282343. The reversal of 12282340 is 4328221.

It is an interprime number because it is at equal distance from previous prime (12282337) and next prime (12282343).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12282343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81265 + ... + 81415.

It is an arithmetic number, because the mean of its divisors is an integer number (424536).

Almost surely, 2^12282340 is an apocalyptic number.

12282340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12282340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15283296).

12282340 is an abundant number, since it is smaller than the sum of its proper divisors (18284252).

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

12282340 is a wasteful number, since it uses less digits than its factorization.

12282340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 12282340 is about 3504.6169548183. The cubic root of 12282340 is about 230.7244955450.

The spelling of 12282340 in words is "twelve million, two hundred eighty-two thousand, three hundred forty".