2143416 has 64 divisors (see below), whose sum is σ = 6117120. Its totient is φ = 619520.

The previous prime is 2143391. The next prime is 2143417. The reversal of 2143416 is 6143412.

It is a nude number because it is divisible by every one of its digits.

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

It is a junction number, because it is equal to n+sod(n) for n = 2143392 and 2143401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143417) 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, 5896 + ... + 6248.

It is an arithmetic number, because the mean of its divisors is an integer number (95580).

2^2143416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3058560).

2143416 is an abundant number, since it is smaller than the sum of its proper divisors (3973704).

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

2143416 is a wasteful number, since it uses less digits than its factorization.

2143416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 392 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 2143416 is about 1464.0409830329. The cubic root of 2143416 is about 128.9344056882.

Adding to 2143416 its reverse (6143412), we get a palindrome (8286828).

The spelling of 2143416 in words is "two million, one hundred forty-three thousand, four hundred sixteen".