16444145 has 16 divisors (see below), whose sum is σ = 20210688. Its totient is φ = 12840960.

The previous prime is 16444133. The next prime is 16444159. The reversal of 16444145 is 54144461.

It is not a de Polignac number, because 16444145 - 2¹⁰ = 16443121 is a prime.

It is a super-3 number, since 3×16444145³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63857 + ... + 64113.

It is an arithmetic number, because the mean of its divisors is an integer number (1263168).

Almost surely, 2^16444145 is an apocalyptic number.

It is an amenable number.

16444145 is a deficient number, since it is larger than the sum of its proper divisors (3766543).

16444145 is a wasteful number, since it uses less digits than its factorization.

16444145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520.

The product of its digits is 7680, while the sum is 29.

The square root of 16444145 is about 4055.1380987582. The cubic root of 16444145 is about 254.2945773208.

The spelling of 16444145 in words is "sixteen million, four hundred forty-four thousand, one hundred forty-five".