12491802 has 12 divisors (see below), whose sum is σ = 27065610. Its totient is φ = 4163928.

The previous prime is 12491789. The next prime is 12491807. The reversal of 12491802 is 20819421.

It can be written as a sum of positive squares in only one way, i.e., 6395841 + 6095961 = 2529^2 + 2469^2 .

It is not an unprimeable number, because it can be changed into a prime (12491807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 346977 + ... + 347012.

Almost surely, 2^12491802 is an apocalyptic number.

12491802 is an abundant number, since it is smaller than the sum of its proper divisors (14573808).

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

12491802 is a wasteful number, since it uses less digits than its factorization.

12491802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693997 (or 693994 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 12491802 is about 3534.3743435013. The cubic root of 12491802 is about 232.0286949248.

The spelling of 12491802 in words is "twelve million, four hundred ninety-one thousand, eight hundred two".