12538242 has 12 divisors (see below), whose sum is σ = 27166230. Its totient is φ = 4179408.

The previous prime is 12538223. The next prime is 12538249. The reversal of 12538242 is 24283521.

12538242 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10169721 + 2368521 = 3189^2 + 1539^2 .

It is not an unprimeable number, because it can be changed into a prime (12538249) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 348267 + ... + 348302.

Almost surely, 2^12538242 is an apocalyptic number.

12538242 is an abundant number, since it is smaller than the sum of its proper divisors (14627988).

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

12538242 is a wasteful number, since it uses less digits than its factorization.

12538242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696577 (or 696574 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 12538242 is about 3540.9380113185. The cubic root of 12538242 is about 232.3158722558.

The spelling of 12538242 in words is "twelve million, five hundred thirty-eight thousand, two hundred forty-two".