12496840 has 32 divisors (see below), whose sum is σ = 28543680. Its totient is φ = 4923072.

The previous prime is 12496837. The next prime is 12496867. The reversal of 12496840 is 4869421.

It is a junction number, because it is equal to n+sod(n) for n = 12496796 and 12496805.

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, 349 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (891990).

Almost surely, 2^12496840 is an apocalyptic number.

12496840 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 12496840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14271840).

12496840 is an abundant number, since it is smaller than the sum of its proper divisors (16046840).

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

12496840 is a wasteful number, since it uses less digits than its factorization.

12496840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4741 (or 4737 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 12496840 is about 3535.0869861999. The cubic root of 12496840 is about 232.0598834715.

The spelling of 12496840 in words is "twelve million, four hundred ninety-six thousand, eight hundred forty".