12630280 has 64 divisors (see below), whose sum is σ = 31026240. Its totient is φ = 4599552.

The previous prime is 12630259. The next prime is 12630301. The reversal of 12630280 is 8203621.

It is an interprime number because it is at equal distance from previous prime (12630259) and next prime (12630301).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55527 + ... + 55753.

It is an arithmetic number, because the mean of its divisors is an integer number (484785).

Almost surely, 2^12630280 is an apocalyptic number.

12630280 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 12630280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15513120).

12630280 is an abundant number, since it is smaller than the sum of its proper divisors (18395960).

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

12630280 is a wasteful number, since it uses less digits than its factorization.

12630280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12630280 is about 3553.9105222276. The cubic root of 12630280 is about 232.8829316056.

The spelling of 12630280 in words is "twelve million, six hundred thirty thousand, two hundred eighty".