4040343 has 6 divisors (see below), whose sum is σ = 5836064. Its totient is φ = 2693556.

The previous prime is 4040327. The next prime is 4040353. The reversal of 4040343 is 3430404.

It is not a de Polignac number, because 4040343 - 2⁴ = 4040327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 224455 + ... + 224472.

Almost surely, 2^4040343 is an apocalyptic number.

4040343 is a deficient number, since it is larger than the sum of its proper divisors (1795721).

4040343 is a wasteful number, since it uses less digits than its factorization.

4040343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448933 (or 448930 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 4040343 is about 2010.0604468523. The cubic root of 4040343 is about 159.2719920306.

Adding to 4040343 its reverse (3430404), we get a palindrome (7470747).

The spelling of 4040343 in words is "four million, forty thousand, three hundred forty-three".