442100243842 has 4 divisors (see below), whose sum is σ = 663150365766. Its totient is φ = 221050121920.

The previous prime is 442100243833. The next prime is 442100243863. The reversal of 442100243842 is 248342001244.

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

It can be written as a sum of positive squares in only one way, i.e., 336677297121 + 105422946721 = 580239^2 + 324689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 442100243798 and 442100243807.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110525060959 + ... + 110525060962.

Almost surely, 2^442100243842 is an apocalyptic number.

442100243842 is a deficient number, since it is larger than the sum of its proper divisors (221050121924).

442100243842 is a wasteful number, since it uses less digits than its factorization.

442100243842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221050121923.

The product of its (nonzero) digits is 49152, while the sum is 34.

The spelling of 442100243842 in words is "four hundred forty-two billion, one hundred million, two hundred forty-three thousand, eight hundred forty-two".