442423203142 has 16 divisors (see below), whose sum is σ = 665506400832. Its totient is φ = 220588378920.

The previous prime is 442423203139. The next prime is 442423203329. The reversal of 442423203142 is 241302324244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1225417 + ... + 1544827.

It is an arithmetic number, because the mean of its divisors is an integer number (41594150052).

Almost surely, 2^442423203142 is an apocalyptic number.

442423203142 is a deficient number, since it is larger than the sum of its proper divisors (223083197690).

442423203142 is a wasteful number, since it uses less digits than its factorization.

442423203142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321363.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 442423203142 its reverse (241302324244), we get a palindrome (683725527386).

The spelling of 442423203142 in words is "four hundred forty-two billion, four hundred twenty-three million, two hundred three thousand, one hundred forty-two".