442000723 has 2 divisors, whose sum is σ = 442000724. Its totient is φ = 442000722.

The previous prime is 442000717. The next prime is 442000747. The reversal of 442000723 is 327000244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442000723 - 2¹³ = 441992531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442000694 and 442000703.

It is not a weakly prime, because it can be changed into another prime (442000753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221000361 + 221000362.

It is an arithmetic number, because the mean of its divisors is an integer number (221000362).

Almost surely, 2^442000723 is an apocalyptic number.

442000723 is a deficient number, since it is larger than the sum of its proper divisors (1).

442000723 is an equidigital number, since it uses as much as digits as its factorization.

442000723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 442000723 is about 21023.8132364231. The cubic root of 442000723 is about 761.7415756476.

Adding to 442000723 its reverse (327000244), we get a palindrome (769000967).

The spelling of 442000723 in words is "four hundred forty-two million, seven hundred twenty-three", and thus it is an aban number.