12542430 has 32 divisors (see below), whose sum is σ = 31873824. Its totient is φ = 3147776.

The previous prime is 12542423. The next prime is 12542437. The reversal of 12542430 is 3424521.

It is an interprime number because it is at equal distance from previous prime (12542423) and next prime (12542437).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12542397 and 12542406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542437) 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, 11787 + ... + 12806.

It is an arithmetic number, because the mean of its divisors is an integer number (996057).

Almost surely, 2^12542430 is an apocalyptic number.

12542430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12542430 is an abundant number, since it is smaller than the sum of its proper divisors (19331394).

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

12542430 is a wasteful number, since it uses less digits than its factorization.

12542430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24620.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 12542430 is about 3541.5293306706. The cubic root of 12542430 is about 232.3417352799.

Adding to 12542430 its reverse (3424521), we get a palindrome (15966951).

The spelling of 12542430 in words is "twelve million, five hundred forty-two thousand, four hundred thirty".