16145744 has 40 divisors (see below), whose sum is σ = 33227040. Its totient is φ = 7579008.

The previous prime is 16145737. The next prime is 16145777. The reversal of 16145744 is 44754161.

It is a self number, because there is not a number n which added to its sum of digits gives 16145744.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52439 + ... + 52745.

It is an arithmetic number, because the mean of its divisors is an integer number (830676).

Almost surely, 2^16145744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16145744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16613520).

16145744 is an abundant number, since it is smaller than the sum of its proper divisors (17081296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16145744 is a wasteful number, since it uses less digits than its factorization.

16145744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 501 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 16145744 is about 4018.1767009429. The cubic root of 16145744 is about 252.7470065975.

The spelling of 16145744 in words is "sixteen million, one hundred forty-five thousand, seven hundred forty-four".