12634940 has 24 divisors (see below), whose sum is σ = 26612880. Its totient is φ = 5038848.

The previous prime is 12634933. The next prime is 12634967. The reversal of 12634940 is 4943621.

It is a congruent number.

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, 7931 + ... + 9389.

It is an arithmetic number, because the mean of its divisors is an integer number (1108870).

Almost surely, 2^12634940 is an apocalyptic number.

12634940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12634940 is an abundant number, since it is smaller than the sum of its proper divisors (13977940).

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

12634940 is a wasteful number, since it uses less digits than its factorization.

12634940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901 (or 1899 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 12634940 is about 3554.5660775965. The cubic root of 12634940 is about 232.9115691607.

The spelling of 12634940 in words is "twelve million, six hundred thirty-four thousand, nine hundred forty".