16447222 has 16 divisors (see below), whose sum is σ = 27097344. Its totient is φ = 7425000.

The previous prime is 16447219. The next prime is 16447241. The reversal of 16447222 is 22274461.

It is a happy number.

It is a super-2 number, since 2×16447222² = 541022223034568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 847 + ... + 5797.

It is an arithmetic number, because the mean of its divisors is an integer number (1693584).

Almost surely, 2^16447222 is an apocalyptic number.

16447222 is a deficient number, since it is larger than the sum of its proper divisors (10650122).

16447222 is a wasteful number, since it uses less digits than its factorization.

16447222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5115.

The product of its digits is 5376, while the sum is 28.

The square root of 16447222 is about 4055.5174762291. The cubic root of 16447222 is about 254.3104373856.

The spelling of 16447222 in words is "sixteen million, four hundred forty-seven thousand, two hundred twenty-two".