12704430 has 16 divisors (see below), whose sum is σ = 30490704. Its totient is φ = 3387840.

The previous prime is 12704413. The next prime is 12704453. The reversal of 12704430 is 3440721.

It is a super-2 number, since 2×12704430² = 322805083249800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12704397 and 12704406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211711 + ... + 211770.

It is an arithmetic number, because the mean of its divisors is an integer number (1905669).

Almost surely, 2^12704430 is an apocalyptic number.

12704430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12704430 is an abundant number, since it is smaller than the sum of its proper divisors (17786274).

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

12704430 is a wasteful number, since it uses less digits than its factorization.

12704430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423491.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 12704430 is about 3564.3274260371. The cubic root of 12704430 is about 233.3377799606.

The spelling of 12704430 in words is "twelve million, seven hundred four thousand, four hundred thirty".