12640010 has 16 divisors (see below), whose sum is σ = 24090696. Its totient is φ = 4758528.

The previous prime is 12640009. The next prime is 12640021. The reversal of 12640010 is 1004621.

It can be written as a sum of positive squares in 4 ways, for example, as 12187081 + 452929 = 3491^2 + 673^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37007 + ... + 37346.

Almost surely, 2^12640010 is an apocalyptic number.

12640010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12640010 is a deficient number, since it is larger than the sum of its proper divisors (11450686).

12640010 is a wasteful number, since it uses less digits than its factorization.

12640010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74377.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12640010 is about 3555.2791732858. The cubic root of 12640010 is about 232.9427183324.

Adding to 12640010 its reverse (1004621), we get a palindrome (13644631).

The spelling of 12640010 in words is "twelve million, six hundred forty thousand, ten".