12542406 has 16 divisors (see below), whose sum is σ = 26175744. Its totient is φ = 3998984.

The previous prime is 12542401. The next prime is 12542423. The reversal of 12542406 is 60424521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542401) 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, 45306 + ... + 45581.

It is an arithmetic number, because the mean of its divisors is an integer number (1635984).

Almost surely, 2^12542406 is an apocalyptic number.

12542406 is an abundant number, since it is smaller than the sum of its proper divisors (13633338).

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

12542406 is a wasteful number, since it uses less digits than its factorization.

12542406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90915.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 12542406 is about 3541.5259423023. The cubic root of 12542406 is about 232.3415870842.

Adding to 12542406 its reverse (60424521), we get a palindrome (72966927).

The spelling of 12542406 in words is "twelve million, five hundred forty-two thousand, four hundred six".