442814843 has 2 divisors, whose sum is σ = 442814844. Its totient is φ = 442814842.

The previous prime is 442814809. The next prime is 442814851. The reversal of 442814843 is 348418244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442814843 - 2⁸ = 442814587 is a prime.

It is a super-2 number, since 2×442814843² = 392169970362229298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442814797 and 442814806.

It is not a weakly prime, because it can be changed into another prime (442814803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221407421 + 221407422.

It is an arithmetic number, because the mean of its divisors is an integer number (221407422).

Almost surely, 2^442814843 is an apocalyptic number.

442814843 is a deficient number, since it is larger than the sum of its proper divisors (1).

442814843 is an equidigital number, since it uses as much as digits as its factorization.

442814843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98304, while the sum is 38.

The square root of 442814843 is about 21043.1661828728. The cubic root of 442814843 is about 762.2089720855.

The spelling of 442814843 in words is "four hundred forty-two million, eight hundred fourteen thousand, eight hundred forty-three".