12542268 has 48 divisors (see below), whose sum is σ = 31610880. Its totient is φ = 3858624.

The previous prime is 12542267. The next prime is 12542273. The reversal of 12542268 is 86224521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7221 + ... + 8787.

It is an arithmetic number, because the mean of its divisors is an integer number (658560).

Almost surely, 2^12542268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12542268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15805440).

12542268 is an abundant number, since it is smaller than the sum of its proper divisors (19068612).

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

12542268 is a wasteful number, since it uses less digits than its factorization.

12542268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626 (or 1624 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 12542268 is about 3541.5064591216. The cubic root of 12542268 is about 232.3407349548.

Adding to 12542268 its reverse (86224521), we get a palindrome (98766789).

The spelling of 12542268 in words is "twelve million, five hundred forty-two thousand, two hundred sixty-eight".