442141057 has 2 divisors, whose sum is σ = 442141058. Its totient is φ = 442141056.

The previous prime is 442141027. The next prime is 442141061. The reversal of 442141057 is 750141244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377563761 + 64577296 = 19431^2 + 8036^2 .

It is a cyclic number.

It is not a de Polignac number, because 442141057 - 2⁷ = 442140929 is a prime.

It is not a weakly prime, because it can be changed into another prime (442141027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221070528 + 221070529.

It is an arithmetic number, because the mean of its divisors is an integer number (221070529).

Almost surely, 2^442141057 is an apocalyptic number.

It is an amenable number.

442141057 is a deficient number, since it is larger than the sum of its proper divisors (1).

442141057 is an equidigital number, since it uses as much as digits as its factorization.

442141057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 442141057 is about 21027.1504726627. The cubic root of 442141057 is about 761.8221840610.

The spelling of 442141057 in words is "four hundred forty-two million, one hundred forty-one thousand, fifty-seven".