12458240 has 36 divisors (see below), whose sum is σ = 29844444. Its totient is φ = 4982784.

The previous prime is 12458239. The next prime is 12458267. The reversal of 12458240 is 4285421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7929856 + 4528384 = 2816^2 + 2128^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3587 + ... + 6146.

Almost surely, 2^12458240 is an apocalyptic number.

12458240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12458240 is an abundant number, since it is smaller than the sum of its proper divisors (17386204).

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

12458240 is an frugal number, since it uses more digits than its factorization.

12458240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9754 (or 9740 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 12458240 is about 3529.6232093525. The cubic root of 12458240 is about 231.8207096762.

The spelling of 12458240 in words is "twelve million, four hundred fifty-eight thousand, two hundred forty".