442079983 has 2 divisors, whose sum is σ = 442079984. Its totient is φ = 442079982.

The previous prime is 442079977. The next prime is 442080013. The reversal of 442079983 is 389970244.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442079983 - 2⁹ = 442079471 is a prime.

It is a super-2 number, since 2×442079983² = 390869422738560578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442079483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221039991 + 221039992.

It is an arithmetic number, because the mean of its divisors is an integer number (221039992).

Almost surely, 2^442079983 is an apocalyptic number.

442079983 is a deficient number, since it is larger than the sum of its proper divisors (1).

442079983 is an equidigital number, since it uses as much as digits as its factorization.

442079983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 442079983 is about 21025.6981572551. The cubic root of 442079983 is about 761.7871050066.

The spelling of 442079983 in words is "four hundred forty-two million, seventy-nine thousand, nine hundred eighty-three".