16443674 has 16 divisors (see below), whose sum is σ = 27066312. Its totient is φ = 7445568.

The previous prime is 16443659. The next prime is 16443677. The reversal of 16443674 is 47634461.

It can be written as a sum of positive squares in 4 ways, for example, as 15155449 + 1288225 = 3893^2 + 1135^2 .

It is a super-3 number, since 3×16443674³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16443677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4589 + ... + 7344.

Almost surely, 2^16443674 is an apocalyptic number.

16443674 is a deficient number, since it is larger than the sum of its proper divisors (10622638).

16443674 is a wasteful number, since it uses less digits than its factorization.

16443674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12001.

The product of its digits is 48384, while the sum is 35.

The square root of 16443674 is about 4055.0800238713. The cubic root of 16443674 is about 254.2921494274.

The spelling of 16443674 in words is "sixteen million, four hundred forty-three thousand, six hundred seventy-four".