13773222 has 24 divisors (see below), whose sum is σ = 30021264. Its totient is φ = 4563504.

The previous prime is 13773211. The next prime is 13773229. The reversal of 13773222 is 22237731.

It is a happy number.

It is a super-2 number, since 2×13773222² = 379403288522568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13773229) 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 11 ways as a sum of consecutive naturals, for example, 903 + ... + 5325.

It is an arithmetic number, because the mean of its divisors is an integer number (1250886).

Almost surely, 2^13773222 is an apocalyptic number.

13773222 is an abundant number, since it is smaller than the sum of its proper divisors (16248042).

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

13773222 is a wasteful number, since it uses less digits than its factorization.

13773222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4604 (or 4601 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 13773222 is about 3711.2291764320. The cubic root of 13773222 is about 239.7057853045.

The spelling of 13773222 in words is "thirteen million, seven hundred seventy-three thousand, two hundred twenty-two".