12484440 has 48 divisors (see below), whose sum is σ = 40575600. Its totient is φ = 3329088.

The previous prime is 12484421. The next prime is 12484441. The reversal of 12484440 is 4448421.

It is a happy number.

It is a super-2 number, since 2×12484440² = 311722484227200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12484441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16980 + ... + 17699.

It is an arithmetic number, because the mean of its divisors is an integer number (845325).

Almost surely, 2^12484440 is an apocalyptic number.

12484440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12484440 is an abundant number, since it is smaller than the sum of its proper divisors (28091160).

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

12484440 is a wasteful number, since it uses less digits than its factorization.

12484440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34696 (or 34689 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 12484440 is about 3533.3327044025. The cubic root of 12484440 is about 231.9831041996.

The spelling of 12484440 in words is "twelve million, four hundred eighty-four thousand, four hundred forty".