4002040343 has 4 divisors (see below), whose sum is σ = 4573760400. Its totient is φ = 3430320288.

The previous prime is 4002040337. The next prime is 4002040349. The reversal of 4002040343 is 3430402004.

It is a happy number.

4002040343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (4002040337) and next prime (4002040349).

It is a cyclic number.

It is not a de Polignac number, because 4002040343 - 2⁴ = 4002040327 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 (4002040349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285860018 + ... + 285860031.

It is an arithmetic number, because the mean of its divisors is an integer number (1143440100).

Almost surely, 2^4002040343 is an apocalyptic number.

4002040343 is a deficient number, since it is larger than the sum of its proper divisors (571720057).

4002040343 is an equidigital number, since it uses as much as digits as its factorization.

4002040343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571720056.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 4002040343 is about 63261.6814746494. The cubic root of 4002040343 is about 1587.6709096419.

Adding to 4002040343 its reverse (3430402004), we get a palindrome (7432442347).

The spelling of 4002040343 in words is "four billion, two million, forty thousand, three hundred forty-three".