12632780 has 24 divisors (see below), whose sum is σ = 26603808. Its totient is φ = 5038848.

The previous prime is 12632771. The next prime is 12632791. The reversal of 12632780 is 8723621.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9092 + ... + 10388.

It is an arithmetic number, because the mean of its divisors is an integer number (1108492).

Almost surely, 2^12632780 is an apocalyptic number.

12632780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12632780 is an abundant number, since it is smaller than the sum of its proper divisors (13971028).

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

12632780 is a wasteful number, since it uses less digits than its factorization.

12632780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793 (or 1791 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12632780 is about 3554.2622300556. The cubic root of 12632780 is about 232.8982959765.

The spelling of 12632780 in words is "twelve million, six hundred thirty-two thousand, seven hundred eighty".