12429456 has 40 divisors (see below), whose sum is σ = 34581120. Its totient is φ = 3824256.

The previous prime is 12429449. The next prime is 12429457. The reversal of 12429456 is 65492421.

It is not an unprimeable number, because it can be changed into a prime (12429457) by changing a digit.

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, 9336 + ... + 10583.

It is an arithmetic number, because the mean of its divisors is an integer number (864528).

Almost surely, 2^12429456 is an apocalyptic number.

12429456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12429456 is an abundant number, since it is smaller than the sum of its proper divisors (22151664).

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

12429456 is a wasteful number, since it uses less digits than its factorization.

12429456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19943 (or 19937 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 12429456 is about 3525.5433623769. The cubic root of 12429456 is about 231.6420361533.

The spelling of 12429456 in words is "twelve million, four hundred twenty-nine thousand, four hundred fifty-six".