12922429 has 16 divisors (see below), whose sum is σ = 14555520. Its totient is φ = 11390400.

The previous prime is 12922417. The next prime is 12922433. The reversal of 12922429 is 92422921.

It is a cyclic number.

It is not a de Polignac number, because 12922429 - 2¹¹ = 12920381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12922429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12922409) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 56814 + ... + 57040.

It is an arithmetic number, because the mean of its divisors is an integer number (909720).

Almost surely, 2^12922429 is an apocalyptic number.

It is an amenable number.

12922429 is a deficient number, since it is larger than the sum of its proper divisors (1633091).

12922429 is a wasteful number, since it uses less digits than its factorization.

12922429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420.

The product of its digits is 5184, while the sum is 31.

The square root of 12922429 is about 3594.7780181814. The cubic root of 12922429 is about 234.6648549902.

It can be divided in two parts, 1292 and 2429, that added together give a square (3721 = 61²).

The spelling of 12922429 in words is "twelve million, nine hundred twenty-two thousand, four hundred twenty-nine".