12390934 has 16 divisors (see below), whose sum is σ = 18892800. Its totient is φ = 6094440.

The previous prime is 12390929. The next prime is 12390949. The reversal of 12390934 is 43909321.

It is a junction number, because it is equal to n+sod(n) for n = 12390896 and 12390905.

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 7 ways as a sum of consecutive naturals, for example, 62167 + ... + 62365.

It is an arithmetic number, because the mean of its divisors is an integer number (1180800).

Almost surely, 2^12390934 is an apocalyptic number.

12390934 is a deficient number, since it is larger than the sum of its proper divisors (6501866).

12390934 is a wasteful number, since it uses less digits than its factorization.

12390934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 12390934 is about 3520.0758514555. The cubic root of 12390934 is about 231.4024829245.

The spelling of 12390934 in words is "twelve million, three hundred ninety thousand, nine hundred thirty-four".