2143396 has 6 divisors (see below), whose sum is σ = 3750950. Its totient is φ = 1071696.

The previous prime is 2143391. The next prime is 2143417. The reversal of 2143396 is 6933412.

It can be written as a sum of positive squares in only one way, i.e., 2143296 + 100 = 1464^2 + 10^2 .

It is a d-powerful number, because it can be written as 2⁹ + 1 + 4⁷ + 3¹² + 3¹³ + 9³ + 6 .

It is not an unprimeable number, because it can be changed into a prime (2143391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267921 + ... + 267928.

2^2143396 is an apocalyptic number.

It is an amenable number.

2143396 is a deficient number, since it is larger than the sum of its proper divisors (1607554).

2143396 is a wasteful number, since it uses less digits than its factorization.

2143396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535853 (or 535851 counting only the distinct ones).

The product of its digits is 3888, while the sum is 28.

The square root of 2143396 is about 1464.0341526071. The cubic root of 2143396 is about 128.9340046623.

The spelling of 2143396 in words is "two million, one hundred forty-three thousand, three hundred ninety-six".