12920422 has 8 divisors (see below), whose sum is σ = 19398096. Its totient is φ = 6454392.

The previous prime is 12920419. The next prime is 12920429. The reversal of 12920422 is 22402921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12920393 and 12920402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12920429) 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 3 ways as a sum of consecutive naturals, for example, 823 + ... + 5149.

It is an arithmetic number, because the mean of its divisors is an integer number (2424762).

Almost surely, 2^12920422 is an apocalyptic number.

12920422 is a deficient number, since it is larger than the sum of its proper divisors (6477674).

12920422 is a wasteful number, since it uses less digits than its factorization.

12920422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5822.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12920422 is about 3594.4988524132. The cubic root of 12920422 is about 234.6527056555.

The spelling of 12920422 in words is "twelve million, nine hundred twenty thousand, four hundred twenty-two".