16863044 has 18 divisors (see below), whose sum is σ = 32437902. Its totient is φ = 7664800.

The previous prime is 16863043. The next prime is 16863047. The reversal of 16863044 is 44036861.

It can be written as a sum of positive squares in only one way, i.e., 11628100 + 5234944 = 3410^2 + 2288^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16863044.

It is not an unprimeable number, because it can be changed into a prime (16863043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16937 + ... + 17904.

Almost surely, 2^16863044 is an apocalyptic number.

It is an amenable number.

16863044 is a deficient number, since it is larger than the sum of its proper divisors (15574858).

16863044 is a wasteful number, since it uses less digits than its factorization.

16863044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34867 (or 34854 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 16863044 is about 4106.4636854598. The cubic root of 16863044 is about 256.4358014751.

The spelling of 16863044 in words is "sixteen million, eight hundred sixty-three thousand, forty-four".