442240283 has 2 divisors, whose sum is σ = 442240284. Its totient is φ = 442240282.

The previous prime is 442240277. The next prime is 442240349. The reversal of 442240283 is 382042244.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442240283 - 2¹⁸ = 441978139 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (442240273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221120141 + 221120142.

It is an arithmetic number, because the mean of its divisors is an integer number (221120142).

Almost surely, 2^442240283 is an apocalyptic number.

442240283 is a deficient number, since it is larger than the sum of its proper divisors (1).

442240283 is an equidigital number, since it uses as much as digits as its factorization.

442240283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 442240283 is about 21029.5098135929. The cubic root of 442240283 is about 761.8791695808.

The spelling of 442240283 in words is "four hundred forty-two million, two hundred forty thousand, two hundred eighty-three".