16749812 has 24 divisors (see below), whose sum is σ = 30334920. Its totient is φ = 8087040.

The previous prime is 16749809. The next prime is 16749829. The reversal of 16749812 is 21894761.

16749812 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 4 ways, for example, as 70756 + 16679056 = 266^2 + 4084^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

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, 17408 + ... + 18344.

It is an arithmetic number, because the mean of its divisors is an integer number (1263955).

Almost surely, 2^16749812 is an apocalyptic number.

It is an amenable number.

16749812 is a deficient number, since it is larger than the sum of its proper divisors (13585108).

16749812 is a wasteful number, since it uses less digits than its factorization.

16749812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1089 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 16749812 is about 4092.6534180162. The cubic root of 16749812 is about 255.8605400891.

The spelling of 16749812 in words is "sixteen million, seven hundred forty-nine thousand, eight hundred twelve".