16444772 has 24 divisors (see below), whose sum is σ = 29688120. Its totient is φ = 7965440.

The previous prime is 16444751. The next prime is 16444781. The reversal of 16444772 is 27744461.

It can be written as a sum of positive squares in 4 ways, for example, as 5262436 + 11182336 = 2294^2 + 3344^2 .

It is a super-2 number, since 2×16444772² = 540861052263968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32054 + ... + 32562.

It is an arithmetic number, because the mean of its divisors is an integer number (1237005).

Almost surely, 2^16444772 is an apocalyptic number.

It is an amenable number.

16444772 is a deficient number, since it is larger than the sum of its proper divisors (13243348).

16444772 is a wasteful number, since it uses less digits than its factorization.

16444772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 749 counting only the distinct ones).

The product of its digits is 37632, while the sum is 35.

The square root of 16444772 is about 4055.2154073489. The cubic root of 16444772 is about 254.2978092852.

The spelling of 16444772 in words is "sixteen million, four hundred forty-four thousand, seven hundred seventy-two".