16447056 has 20 divisors (see below), whose sum is σ = 42488352. Its totient is φ = 5482336.

The previous prime is 16447051. The next prime is 16447061. The reversal of 16447056 is 65074461.

It is an interprime number because it is at equal distance from previous prime (16447051) and next prime (16447061).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16447051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171276 + ... + 171371.

Almost surely, 2^16447056 is an apocalyptic number.

16447056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16447056 is an abundant number, since it is smaller than the sum of its proper divisors (26041296).

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

16447056 is a wasteful number, since it uses less digits than its factorization.

16447056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342658 (or 342652 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 16447056 is about 4055.4970102319. The cubic root of 16447056 is about 254.3095818069.

The spelling of 16447056 in words is "sixteen million, four hundred forty-seven thousand, fifty-six".