12930000 has 100 divisors (see below), whose sum is σ = 41836608. Its totient is φ = 3440000.

The previous prime is 12929999. The next prime is 12930011. The reversal of 12930000 is 3921.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 29785 + ... + 30215.

Almost surely, 2^12930000 is an apocalyptic number.

12930000 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 12930000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20918304).

12930000 is an abundant number, since it is smaller than the sum of its proper divisors (28906608).

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

12930000 is an equidigital number, since it uses as much as digits as its factorization.

12930000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 12930000 is about 3595.8309192730. The cubic root of 12930000 is about 234.7106745691.

Adding to 12930000 its reverse (3921), we get a palindrome (12933921).

The spelling of 12930000 in words is "twelve million, nine hundred thirty thousand".