12730380 has 96 divisors (see below), whose sum is σ = 40454400. Its totient is φ = 2965248.

The previous prime is 12730379. The next prime is 12730381. The reversal of 12730380 is 8303721.

It is an interprime number because it is at equal distance from previous prime (12730379) and next prime (12730381).

It is a self number, because there is not a number n which added to its sum of digits gives 12730380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12730381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14391 + ... + 15249.

It is an arithmetic number, because the mean of its divisors is an integer number (421400).

Almost surely, 2^12730380 is an apocalyptic number.

12730380 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 12730380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20227200).

12730380 is an abundant number, since it is smaller than the sum of its proper divisors (27724020).

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

12730380 is a wasteful number, since it uses less digits than its factorization.

12730380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 12730380 is about 3567.9658070110. The cubic root of 12730380 is about 233.4965434089.

The spelling of 12730380 in words is "twelve million, seven hundred thirty thousand, three hundred eighty".