16445674 has 24 divisors (see below), whose sum is σ = 29403108. Its totient is φ = 6874560.

The previous prime is 16445623. The next prime is 16445677. The reversal of 16445674 is 47654461.

It can be written as a sum of positive squares in 2 ways, for example, as 14768649 + 1677025 = 3843^2 + 1295^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16445677) 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, 1972 + ... + 6064.

Almost surely, 2^16445674 is an apocalyptic number.

16445674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16445674 is a deficient number, since it is larger than the sum of its proper divisors (12957434).

16445674 is a wasteful number, since it uses less digits than its factorization.

16445674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150 (or 4143 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 16445674 is about 4055.3266206312. The cubic root of 16445674 is about 254.3024586337.

The spelling of 16445674 in words is "sixteen million, four hundred forty-five thousand, six hundred seventy-four".