4044542057 has 2 divisors, whose sum is σ = 4044542058. Its totient is φ = 4044542056.

The previous prime is 4044542023. The next prime is 4044542107. The reversal of 4044542057 is 7502454404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4004864656 + 39677401 = 63284^2 + 6299^2 .

It is a cyclic number.

It is not a de Polignac number, because 4044542057 - 2¹⁸ = 4044279913 is a prime.

It is not a weakly prime, because it can be changed into another prime (4044542857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022271028 + 2022271029.

It is an arithmetic number, because the mean of its divisors is an integer number (2022271029).

Almost surely, 2^4044542057 is an apocalyptic number.

It is an amenable number.

4044542057 is a deficient number, since it is larger than the sum of its proper divisors (1).

4044542057 is an equidigital number, since it uses as much as digits as its factorization.

4044542057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89600, while the sum is 35.

The square root of 4044542057 is about 63596.7141997132. The cubic root of 4044542057 is about 1593.2714911495.

The spelling of 4044542057 in words is "four billion, forty-four million, five hundred forty-two thousand, fifty-seven".