12457242 has 24 divisors (see below), whose sum is σ = 30846816. Its totient is φ = 3559176.

The previous prime is 12457219. The next prime is 12457301. The reversal of 12457242 is 24275421.

12457242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49308 + ... + 49559.

It is an arithmetic number, because the mean of its divisors is an integer number (1285284).

Almost surely, 2^12457242 is an apocalyptic number.

12457242 is an abundant number, since it is smaller than the sum of its proper divisors (18389574).

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

12457242 is a wasteful number, since it uses less digits than its factorization.

12457242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98882 (or 98879 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 12457242 is about 3529.4818316574. The cubic root of 12457242 is about 231.8145193088.

The spelling of 12457242 in words is "twelve million, four hundred fifty-seven thousand, two hundred forty-two".