13420422 has 24 divisors (see below), whose sum is σ = 30608760. Its totient is φ = 4237920.

The previous prime is 13420397. The next prime is 13420453. The reversal of 13420422 is 22402431.

13420422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13420395 and 13420404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19279 + ... + 19962.

It is an arithmetic number, because the mean of its divisors is an integer number (1275365).

Almost surely, 2^13420422 is an apocalyptic number.

13420422 is an abundant number, since it is smaller than the sum of its proper divisors (17188338).

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

13420422 is a wasteful number, since it uses less digits than its factorization.

13420422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39268 (or 39265 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 13420422 is about 3663.3894141901. The cubic root of 13420422 is about 237.6413754765.

Adding to 13420422 its reverse (22402431), we get a palindrome (35822853).

Subtracting 13420422 from its reverse (22402431), we obtain a square (8982009 = 2997²).

The spelling of 13420422 in words is "thirteen million, four hundred twenty thousand, four hundred twenty-two".