12400202 has 8 divisors (see below), whose sum is σ = 18905412. Its totient is φ = 6098400.

The previous prime is 12400183. The next prime is 12400231. The reversal of 12400202 is 20200421.

It can be written as a sum of positive squares in 2 ways, for example, as 8404201 + 3996001 = 2899^2 + 1999^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 50699 + ... + 50942.

Almost surely, 2^12400202 is an apocalyptic number.

12400202 is a deficient number, since it is larger than the sum of its proper divisors (6505210).

12400202 is a wasteful number, since it uses less digits than its factorization.

12400202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101704.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 12400202 is about 3521.3920542876. The cubic root of 12400202 is about 231.4601622925.

Adding to 12400202 its reverse (20200421), we get a palindrome (32600623).

The spelling of 12400202 in words is "twelve million, four hundred thousand, two hundred two".