4002431957 has 2 divisors, whose sum is σ = 4002431958. Its totient is φ = 4002431956.

The previous prime is 4002431921. The next prime is 4002432017. The reversal of 4002431957 is 7591342004.

4002431957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2764025476 + 1238406481 = 52574^2 + 35191^2 .

It is a cyclic number.

It is not a de Polignac number, because 4002431957 - 2²⁴ = 3985654741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4002434957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001215978 + 2001215979.

It is an arithmetic number, because the mean of its divisors is an integer number (2001215979).

Almost surely, 2^4002431957 is an apocalyptic number.

It is an amenable number.

4002431957 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002431957 is an equidigital number, since it uses as much as digits as its factorization.

4002431957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 4002431957 is about 63264.7765901374. The cubic root of 4002431957 is about 1587.7226943836.

The spelling of 4002431957 in words is "four billion, two million, four hundred thirty-one thousand, nine hundred fifty-seven".