12634380 has 120 divisors (see below), whose sum is σ = 43298640. Its totient is φ = 3058560.

The previous prime is 12634361. The next prime is 12634397. The reversal of 12634380 is 8343621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17466 + ... + 18174.

It is an arithmetic number, because the mean of its divisors is an integer number (360822).

Almost surely, 2^12634380 is an apocalyptic number.

12634380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12634380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21649320).

12634380 is an abundant number, since it is smaller than the sum of its proper divisors (30664260).

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

12634380 is a wasteful number, since it uses less digits than its factorization.

12634380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 12634380 is about 3554.4873048022. The cubic root of 12634380 is about 232.9081281101.

The spelling of 12634380 in words is "twelve million, six hundred thirty-four thousand, three hundred eighty".