442363939 has 2 divisors, whose sum is σ = 442363940. Its totient is φ = 442363938.

The previous prime is 442363927. The next prime is 442363951. The reversal of 442363939 is 939363244.

It is a balanced prime because it is at equal distance from previous prime (442363927) and next prime (442363951).

It is a cyclic number.

It is not a de Polignac number, because 442363939 - 2¹³ = 442355747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442363895 and 442363904.

It is not a weakly prime, because it can be changed into another prime (442363139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221181969 + 221181970.

It is an arithmetic number, because the mean of its divisors is an integer number (221181970).

Almost surely, 2^442363939 is an apocalyptic number.

442363939 is a deficient number, since it is larger than the sum of its proper divisors (1).

442363939 is an equidigital number, since it uses as much as digits as its factorization.

442363939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 43.

The square root of 442363939 is about 21032.4496671215. The cubic root of 442363939 is about 761.9501733275.

The spelling of 442363939 in words is "four hundred forty-two million, three hundred sixty-three thousand, nine hundred thirty-nine".