16995944 has 48 divisors (see below), whose sum is σ = 37428480. Its totient is φ = 7213920.

The previous prime is 16995941. The next prime is 16995961. The reversal of 16995944 is 44959961.

It is a super-2 number, since 2×16995944² = 577724224902272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16995941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74759 + ... + 74985.

It is an arithmetic number, because the mean of its divisors is an integer number (779760).

Almost surely, 2^16995944 is an apocalyptic number.

16995944 is a gapful number since it is divisible by the number (14) 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 16995944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18714240).

16995944 is an abundant number, since it is smaller than the sum of its proper divisors (20432536).

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

16995944 is a wasteful number, since it uses less digits than its factorization.

16995944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 427 counting only the distinct ones).

The product of its digits is 349920, while the sum is 47.

The square root of 16995944 is about 4122.6137340285. The cubic root of 16995944 is about 257.1077081881.

It can be divided in two parts, 16995 and 944, that multiplied together give a triangular number (16043280 = T₅₆₆₄).

The spelling of 16995944 in words is "sixteen million, nine hundred ninety-five thousand, nine hundred forty-four".