16745744 has 20 divisors (see below), whose sum is σ = 32510940. Its totient is φ = 8355840.

The previous prime is 16745741. The next prime is 16745761. The reversal of 16745744 is 44754761.

It is a happy number.

16745744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4579600 + 12166144 = 2140^2 + 3488^2 .

It is a super-2 number, since 2×16745744² = 560839884227072, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16745698 and 16745707.

It is not an unprimeable number, because it can be changed into a prime (16745741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11624 + ... + 12984.

It is an arithmetic number, because the mean of its divisors is an integer number (1625547).

Almost surely, 2^16745744 is an apocalyptic number.

It is an amenable number.

16745744 is a deficient number, since it is larger than the sum of its proper divisors (15765196).

16745744 is a wasteful number, since it uses less digits than its factorization.

16745744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138 (or 2132 counting only the distinct ones).

The product of its digits is 94080, while the sum is 38.

The square root of 16745744 is about 4092.1563997482. The cubic root of 16745744 is about 255.8398249322.

The spelling of 16745744 in words is "sixteen million, seven hundred forty-five thousand, seven hundred forty-four".