12999930 has 32 divisors (see below), whose sum is σ = 31437504. Its totient is φ = 3440256.

The previous prime is 12999929. The next prime is 12999937. The reversal of 12999930 is 3999921.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12999937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2529 + ... + 5691.

It is an arithmetic number, because the mean of its divisors is an integer number (982422).

Almost surely, 2^12999930 is an apocalyptic number.

12999930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12999930 is an abundant number, since it is smaller than the sum of its proper divisors (18437574).

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

12999930 is a wasteful number, since it uses less digits than its factorization.

12999930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310.

The product of its (nonzero) digits is 39366, while the sum is 42.

The square root of 12999930 is about 3605.5415681975. The cubic root of 12999930 is about 235.1330467369.

Subtracting from 12999930 its reverse (3999921), we obtain a palindrome (9000009).

The spelling of 12999930 in words is "twelve million, nine hundred ninety-nine thousand, nine hundred thirty".