16749312 has 72 divisors (see below), whose sum is σ = 45205104. Its totient is φ = 5505024.

The previous prime is 16749311. The next prime is 16749323. The reversal of 16749312 is 21394761.

16749312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16749311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86688 + ... + 86880.

Almost surely, 2^16749312 is an apocalyptic number.

16749312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16749312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22602552).

16749312 is an abundant number, since it is smaller than the sum of its proper divisors (28455792).

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

16749312 is a wasteful number, since it uses less digits than its factorization.

16749312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 311 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 16749312 is about 4092.5923324954. The cubic root of 16749312 is about 255.8579941591.

The spelling of 16749312 in words is "sixteen million, seven hundred forty-nine thousand, three hundred twelve".