12440210 has 8 divisors (see below), whose sum is σ = 22392396. Its totient is φ = 4976080.

The previous prime is 12440203. The next prime is 12440221. The reversal of 12440210 is 1204421.

It can be written as a sum of positive squares in 2 ways, for example, as 11539609 + 900601 = 3397^2 + 949^2 .

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, 622001 + ... + 622020.

Almost surely, 2^12440210 is an apocalyptic number.

12440210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12440210 is a deficient number, since it is larger than the sum of its proper divisors (9952186).

12440210 is a wasteful number, since it uses less digits than its factorization.

12440210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244028.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12440210 is about 3527.0681876028. The cubic root of 12440210 is about 231.7088226743.

Adding to 12440210 its reverse (1204421), we get a palindrome (13644631).

The spelling of 12440210 in words is "twelve million, four hundred forty thousand, two hundred ten".