442299799 has 2 divisors, whose sum is σ = 442299800. Its totient is φ = 442299798.

The previous prime is 442299797. The next prime is 442299839. The reversal of 442299799 is 997992244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442299799 - 2¹ = 442299797 is a prime.

It is a super-2 number, since 2×442299799² = 391258224390880802, which contains 22 as substring.

Together with 442299797, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442299797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221149899 + 221149900.

It is an arithmetic number, because the mean of its divisors is an integer number (221149900).

Almost surely, 2^442299799 is an apocalyptic number.

442299799 is a deficient number, since it is larger than the sum of its proper divisors (1).

442299799 is an equidigital number, since it uses as much as digits as its factorization.

442299799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 55.

The square root of 442299799 is about 21030.9248251236. The cubic root of 442299799 is about 761.9133455468.

The spelling of 442299799 in words is "four hundred forty-two million, two hundred ninety-nine thousand, seven hundred ninety-nine".