12631380 has 24 divisors (see below), whose sum is σ = 35368032. Its totient is φ = 3368352.

The previous prime is 12631373. The next prime is 12631387. The reversal of 12631380 is 8313621.

It is an interprime number because it is at equal distance from previous prime (12631373) and next prime (12631387).

It is a self number, because there is not a number n which added to its sum of digits gives 12631380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12631387) by changing a digit.

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, 105202 + ... + 105321.

It is an arithmetic number, because the mean of its divisors is an integer number (1473668).

Almost surely, 2^12631380 is an apocalyptic number.

12631380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12631380 is an abundant number, since it is smaller than the sum of its proper divisors (22736652).

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

12631380 is a wasteful number, since it uses less digits than its factorization.

12631380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210535 (or 210533 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12631380 is about 3554.0652779599. The cubic root of 12631380 is about 232.8896921785.

The spelling of 12631380 in words is "twelve million, six hundred thirty-one thousand, three hundred eighty".