16944340 has 48 divisors (see below), whose sum is σ = 41029632. Its totient is φ = 5757696.

The previous prime is 16944337. The next prime is 16944341. The reversal of 16944340 is 4344961.

It is a super-2 number, since 2×16944340² = 574221316071200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16944341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17304 + ... + 18256.

It is an arithmetic number, because the mean of its divisors is an integer number (854784).

Almost surely, 2^16944340 is an apocalyptic number.

16944340 is a gapful number since it is divisible by the number (10) 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 16944340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20514816).

16944340 is an abundant number, since it is smaller than the sum of its proper divisors (24085292).

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

16944340 is a wasteful number, since it uses less digits than its factorization.

16944340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096 (or 1094 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 16944340 is about 4116.3503252274. The cubic root of 16944340 is about 256.8472296293.

The spelling of 16944340 in words is "sixteen million, nine hundred forty-four thousand, three hundred forty".