13822220 has 12 divisors (see below), whose sum is σ = 29026704. Its totient is φ = 5528880.

The previous prime is 13822217. The next prime is 13822223. The reversal of 13822220 is 2222831.

It is an interprime number because it is at equal distance from previous prime (13822217) and next prime (13822223).

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 691111 = 13822220 / (1 + 3 + 8 + 2 + 2 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 13822192 and 13822201.

It is not an unprimeable number, because it can be changed into a prime (13822223) 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, 345536 + ... + 345575.

It is an arithmetic number, because the mean of its divisors is an integer number (2418892).

Almost surely, 2^13822220 is an apocalyptic number.

13822220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13822220 is an abundant number, since it is smaller than the sum of its proper divisors (15204484).

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

13822220 is a wasteful number, since it uses less digits than its factorization.

13822220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691120 (or 691118 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 13822220 is about 3717.8246327658. The cubic root of 13822220 is about 239.9896986319.

The spelling of 13822220 in words is "thirteen million, eight hundred twenty-two thousand, two hundred twenty".