16672222 has 8 divisors (see below), whose sum is σ = 28580976. Its totient is φ = 7145232.

The previous prime is 16672207. The next prime is 16672231. The reversal of 16672222 is 22227661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595423 + ... + 595450.

It is an arithmetic number, because the mean of its divisors is an integer number (3572622).

Almost surely, 2^16672222 is an apocalyptic number.

16672222 is a deficient number, since it is larger than the sum of its proper divisors (11908754).

16672222 is a wasteful number, since it uses less digits than its factorization.

16672222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190882.

The product of its digits is 4032, while the sum is 28.

The square root of 16672222 is about 4083.1632345523. The cubic root of 16672222 is about 255.4648550074.

Adding to 16672222 its reverse (22227661), we get a palindrome (38899883).

The spelling of 16672222 in words is "sixteen million, six hundred seventy-two thousand, two hundred twenty-two".