16808444 has 12 divisors (see below), whose sum is σ = 31145184. Its totient is φ = 7909824.

The previous prime is 16808431. The next prime is 16808447. The reversal of 16808444 is 44480861.

16808444 = 1446² + 1447² + ... + 1453².

It is a super-2 number, since 2×16808444² = 565047579402272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16808447) 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, 123524 + ... + 123659.

It is an arithmetic number, because the mean of its divisors is an integer number (2595432).

Almost surely, 2^16808444 is an apocalyptic number.

It is an amenable number.

16808444 is a deficient number, since it is larger than the sum of its proper divisors (14336740).

16808444 is a wasteful number, since it uses less digits than its factorization.

16808444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247204 (or 247202 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 16808444 is about 4099.8102395111. The cubic root of 16808444 is about 256.1587353758.

The spelling of 16808444 in words is "sixteen million, eight hundred eight thousand, four hundred forty-four".