12458540 has 12 divisors (see below), whose sum is σ = 26162976. Its totient is φ = 4983408.

The previous prime is 12458539. The next prime is 12458543. The reversal of 12458540 is 4585421.

12458540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12458543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311444 + ... + 311483.

It is an arithmetic number, because the mean of its divisors is an integer number (2180248).

Almost surely, 2^12458540 is an apocalyptic number.

12458540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12458540 is an abundant number, since it is smaller than the sum of its proper divisors (13704436).

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

12458540 is a wasteful number, since it uses less digits than its factorization.

12458540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622936 (or 622934 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 12458540 is about 3529.6657065507. The cubic root of 12458540 is about 231.8225704434.

The spelling of 12458540 in words is "twelve million, four hundred fifty-eight thousand, five hundred forty".