442344031 has 4 divisors (see below), whose sum is σ = 444065472. Its totient is φ = 440622592.

The previous prime is 442344017. The next prime is 442344059. The reversal of 442344031 is 130443244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442344031 - 2¹⁹ = 441819743 is a prime.

It is a super-2 number, since 2×442344031² = 391336483522657922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442343987 and 442344005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442344061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860335 + ... + 860848.

It is an arithmetic number, because the mean of its divisors is an integer number (111016368).

Almost surely, 2^442344031 is an apocalyptic number.

442344031 is a deficient number, since it is larger than the sum of its proper divisors (1721441).

442344031 is a wasteful number, since it uses less digits than its factorization.

442344031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721440.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 442344031 is about 21031.9763931020. The cubic root of 442344031 is about 761.9387429717.

Adding to 442344031 its reverse (130443244), we get a palindrome (572787275).

The spelling of 442344031 in words is "four hundred forty-two million, three hundred forty-four thousand, thirty-one".