12485440 has 56 divisors (see below), whose sum is σ = 32442912. Its totient is φ = 4538880.

The previous prime is 12485401. The next prime is 12485453. The reversal of 12485440 is 4458421.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12485399 and 12485408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1747 + ... + 5293.

Almost surely, 2^12485440 is an apocalyptic number.

12485440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12485440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16221456).

12485440 is an abundant number, since it is smaller than the sum of its proper divisors (19957472).

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

12485440 is a wasteful number, since it uses less digits than its factorization.

12485440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575 (or 3565 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 12485440 is about 3533.4742110280. The cubic root of 12485440 is about 231.9892979605.

The spelling of 12485440 in words is "twelve million, four hundred eighty-five thousand, four hundred forty".