16447472 has 20 divisors (see below), whose sum is σ = 31965216. Its totient is φ = 8198400.

The previous prime is 16447471. The next prime is 16447481. The reversal of 16447472 is 27474461.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16447471) by changing a digit.

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, 4472 + ... + 7272.

Almost surely, 2^16447472 is an apocalyptic number.

It is an amenable number.

16447472 is a deficient number, since it is larger than the sum of its proper divisors (15517744).

16447472 is a wasteful number, since it uses less digits than its factorization.

16447472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176 (or 3170 counting only the distinct ones).

The product of its digits is 37632, while the sum is 35.

The square root of 16447472 is about 4055.5482983192. The cubic root of 16447472 is about 254.3117258967.

The spelling of 16447472 in words is "sixteen million, four hundred forty-seven thousand, four hundred seventy-two".