4000322539 has 2 divisors, whose sum is σ = 4000322540. Its totient is φ = 4000322538.

The previous prime is 4000322519. The next prime is 4000322603. The reversal of 4000322539 is 9352230004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4000322539 - 2⁵ = 4000322507 is a prime.

It is not a weakly prime, because it can be changed into another prime (4000322519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000161269 + 2000161270.

It is an arithmetic number, because the mean of its divisors is an integer number (2000161270).

Almost surely, 2^4000322539 is an apocalyptic number.

4000322539 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000322539 is an equidigital number, since it uses as much as digits as its factorization.

4000322539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 4000322539 is about 63248.1030466527. The cubic root of 4000322539 is about 1587.4437173838.

The spelling of 4000322539 in words is "four billion, three hundred twenty-two thousand, five hundred thirty-nine".