12819930 has 32 divisors (see below), whose sum is σ = 31079808. Its totient is φ = 3384000.

The previous prime is 12819929. The next prime is 12819941. The reversal of 12819930 is 3991821.

It is a junction number, because it is equal to n+sod(n) for n = 12819891 and 12819900.

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, 915 + ... + 5145.

It is an arithmetic number, because the mean of its divisors is an integer number (971244).

Almost surely, 2^12819930 is an apocalyptic number.

12819930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12819930 is an abundant number, since it is smaller than the sum of its proper divisors (18259878).

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

12819930 is a wasteful number, since it uses less digits than its factorization.

12819930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 12819930 is about 3580.4929828168. The cubic root of 12819930 is about 234.0427637528.

It can be divided in two parts, 1281 and 9930, that added together give a palindrome (11211).

The spelling of 12819930 in words is "twelve million, eight hundred nineteen thousand, nine hundred thirty".