442311442 has 8 divisors (see below), whose sum is σ = 664226316. Its totient is φ = 220902672.

The previous prime is 442311437. The next prime is 442311449. The reversal of 442311442 is 244113244.

It can be written as a sum of positive squares in 2 ways, for example, as 319301161 + 123010281 = 17869^2 + 11091^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (442311449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124333 + ... + 127840.

Almost surely, 2^442311442 is an apocalyptic number.

442311442 is a deficient number, since it is larger than the sum of its proper divisors (221914874).

442311442 is a wasteful number, since it uses less digits than its factorization.

442311442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253052.

The product of its digits is 3072, while the sum is 25.

The square root of 442311442 is about 21031.2016299592. The cubic root of 442311442 is about 761.9200309664.

Adding to 442311442 its reverse (244113244), we get a palindrome (686424686).

The spelling of 442311442 in words is "four hundred forty-two million, three hundred eleven thousand, four hundred forty-two".