13422220 has 24 divisors (see below), whose sum is σ = 32213664. Its totient is φ = 4601856.

The previous prime is 13422209. The next prime is 13422221. The reversal of 13422220 is 2222431.

13422220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13422194 and 13422203.

It is not an unprimeable number, because it can be changed into a prime (13422221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47797 + ... + 48076.

It is an arithmetic number, because the mean of its divisors is an integer number (1342236).

Almost surely, 2^13422220 is an apocalyptic number.

13422220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13422220 is an abundant number, since it is smaller than the sum of its proper divisors (18791444).

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

13422220 is a wasteful number, since it uses less digits than its factorization.

13422220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95889 (or 95887 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 13422220 is about 3663.6348071280. The cubic root of 13422220 is about 237.6519876643.

Adding to 13422220 its reverse (2222431), we get a palindrome (15644651).

The spelling of 13422220 in words is "thirteen million, four hundred twenty-two thousand, two hundred twenty".