4038402157 has 2 divisors, whose sum is σ = 4038402158. Its totient is φ = 4038402156.

The previous prime is 4038402143. The next prime is 4038402211. The reversal of 4038402157 is 7512048304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3463793316 + 574608841 = 58854^2 + 23971^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4038402157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4038402127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2019201078 + 2019201079.

It is an arithmetic number, because the mean of its divisors is an integer number (2019201079).

Almost surely, 2^4038402157 is an apocalyptic number.

It is an amenable number.

4038402157 is a deficient number, since it is larger than the sum of its proper divisors (1).

4038402157 is an equidigital number, since it uses as much as digits as its factorization.

4038402157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 4038402157 is about 63548.4237176659. The cubic root of 4038402157 is about 1592.4648500137.

The spelling of 4038402157 in words is "four billion, thirty-eight million, four hundred two thousand, one hundred fifty-seven".