442303999 has 2 divisors, whose sum is σ = 442304000. Its totient is φ = 442303998.

The previous prime is 442303993. The next prime is 442304003. The reversal of 442303999 is 999303244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442303999 - 2⁹ = 442303487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442303993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221151999 + 221152000.

It is an arithmetic number, because the mean of its divisors is an integer number (221152000).

Almost surely, 2^442303999 is an apocalyptic number.

442303999 is a deficient number, since it is larger than the sum of its proper divisors (1).

442303999 is an equidigital number, since it uses as much as digits as its factorization.

442303999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 442303999 is about 21031.0246778420. The cubic root of 442303999 is about 761.9157572036.

The spelling of 442303999 in words is "four hundred forty-two million, three hundred three thousand, nine hundred ninety-nine".