12840202 has 8 divisors (see below), whose sum is σ = 20393316. Its totient is φ = 6042432.

The previous prime is 12840193. The next prime is 12840203. The reversal of 12840202 is 20204821.

12840202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12823561 + 16641 = 3581^2 + 129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×12840202⁴ (a number of 30 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12840202.

It is not an unprimeable number, because it can be changed into a prime (12840203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188793 + ... + 188860.

Almost surely, 2^12840202 is an apocalyptic number.

12840202 is a deficient number, since it is larger than the sum of its proper divisors (7553114).

12840202 is a wasteful number, since it uses less digits than its factorization.

12840202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377672.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 12840202 is about 3583.3227596743. The cubic root of 12840202 is about 234.1660617814.

The spelling of 12840202 in words is "twelve million, eight hundred forty thousand, two hundred two".