4042394957 has 2 divisors, whose sum is σ = 4042394958. Its totient is φ = 4042394956.

The previous prime is 4042394911. The next prime is 4042395001. The reversal of 4042394957 is 7594932404.

4042394957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3478522441 + 563872516 = 58979^2 + 23746^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042394957 - 2⁶ = 4042394893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4042394557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021197478 + 2021197479.

It is an arithmetic number, because the mean of its divisors is an integer number (2021197479).

Almost surely, 2^4042394957 is an apocalyptic number.

It is an amenable number.

4042394957 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042394957 is an equidigital number, since it uses as much as digits as its factorization.

4042394957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The square root of 4042394957 is about 63579.8313697040. The cubic root of 4042394957 is about 1592.9895046522.

The spelling of 4042394957 in words is "four billion, forty-two million, three hundred ninety-four thousand, nine hundred fifty-seven".