16444678 has 24 divisors (see below), whose sum is σ = 27364752. Its totient is φ = 7396224.

The previous prime is 16444639. The next prime is 16444679. The reversal of 16444678 is 87644461.

It is a self number, because there is not a number n which added to its sum of digits gives 16444678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16444679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12676 + ... + 13912.

It is an arithmetic number, because the mean of its divisors is an integer number (1140198).

Almost surely, 2^16444678 is an apocalyptic number.

16444678 is a deficient number, since it is larger than the sum of its proper divisors (10920074).

16444678 is a wasteful number, since it uses less digits than its factorization.

16444678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296 (or 1279 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 16444678 is about 4055.2038173192. The cubic root of 16444678 is about 254.2973247535.

The spelling of 16444678 in words is "sixteen million, four hundred forty-four thousand, six hundred seventy-eight".