16444144 has 10 divisors (see below), whose sum is σ = 31860560. Its totient is φ = 8222064.

The previous prime is 16444133. The next prime is 16444159. The reversal of 16444144 is 44144461.

It is a super-3 number, since 3×16444144³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513864 + ... + 513895.

It is an arithmetic number, because the mean of its divisors is an integer number (3186056).

Almost surely, 2^16444144 is an apocalyptic number.

It is an amenable number.

16444144 is a deficient number, since it is larger than the sum of its proper divisors (15416416).

16444144 is a wasteful number, since it uses less digits than its factorization.

16444144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027767 (or 1027761 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

The square root of 16444144 is about 4055.1379754578. The cubic root of 16444144 is about 254.2945721661.

The spelling of 16444144 in words is "sixteen million, four hundred forty-four thousand, one hundred forty-four".