12542320 has 40 divisors (see below), whose sum is σ = 33328224. Its totient is φ = 4300032.

The previous prime is 12542317. The next prime is 12542323. The reversal of 12542320 is 2324521.

It is an interprime number because it is at equal distance from previous prime (12542317) and next prime (12542323).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542323) 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 7 ways as a sum of consecutive naturals, for example, 10639 + ... + 11758.

Almost surely, 2^12542320 is an apocalyptic number.

12542320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12542320 is an abundant number, since it is smaller than the sum of its proper divisors (20785904).

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

12542320 is a wasteful number, since it uses less digits than its factorization.

12542320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22417 (or 22411 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12542320 is about 3541.5138006226. The cubic root of 12542320 is about 232.3410560478.

Adding to 12542320 its reverse (2324521), we get a palindrome (14866841).

It can be divided in two parts, 125 and 42320, that multiplied together give a square (5290000 = 2300²).

The spelling of 12542320 in words is "twelve million, five hundred forty-two thousand, three hundred twenty".