16220322 has 24 divisors (see below), whose sum is σ = 35231664. Its totient is φ = 5393304.

The previous prime is 16220287. The next prime is 16220371. The reversal of 16220322 is 22302261.

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 = 16220295 and 16220304.

It is an unprimeable number.

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, 8553 + ... + 10275.

It is an arithmetic number, because the mean of its divisors is an integer number (1467986).

Almost surely, 2^16220322 is an apocalyptic number.

16220322 is an abundant number, since it is smaller than the sum of its proper divisors (19011342).

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

16220322 is a wasteful number, since it uses less digits than its factorization.

16220322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254 (or 2251 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 16220322 is about 4027.4460890247. The cubic root of 16220322 is about 253.1355593217.

Adding to 16220322 its reverse (22302261), we get a palindrome (38522583).

The spelling of 16220322 in words is "sixteen million, two hundred twenty thousand, three hundred twenty-two".