12912330 has 16 divisors (see below), whose sum is σ = 30989664. Its totient is φ = 3443280.

The previous prime is 12912311. The next prime is 12912331. The reversal of 12912330 is 3321921.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12912297 and 12912306.

It is not an unprimeable number, because it can be changed into a prime (12912331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215176 + ... + 215235.

It is an arithmetic number, because the mean of its divisors is an integer number (1936854).

Almost surely, 2^12912330 is an apocalyptic number.

12912330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12912330 is an abundant number, since it is smaller than the sum of its proper divisors (18077334).

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

12912330 is a wasteful number, since it uses less digits than its factorization.

12912330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430421.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 12912330 is about 3593.3730671891. The cubic root of 12912330 is about 234.6037081269.

The spelling of 12912330 in words is "twelve million, nine hundred twelve thousand, three hundred thirty".