12646632 has 16 divisors (see below), whose sum is σ = 31616640. Its totient is φ = 4215536.

The previous prime is 12646597. The next prime is 12646661. The reversal of 12646632 is 23664621.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12646632.

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 3 ways as a sum of consecutive naturals, for example, 263448 + ... + 263495.

It is an arithmetic number, because the mean of its divisors is an integer number (1976040).

Almost surely, 2^12646632 is an apocalyptic number.

12646632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12646632 is an abundant number, since it is smaller than the sum of its proper divisors (18970008).

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

12646632 is a wasteful number, since it uses less digits than its factorization.

12646632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526952 (or 526948 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 12646632 is about 3556.2103424854. The cubic root of 12646632 is about 232.9833901721.

The spelling of 12646632 in words is "twelve million, six hundred forty-six thousand, six hundred thirty-two".