442125305144 has 8 divisors (see below), whose sum is σ = 828984947160. Its totient is φ = 221062652568.

The previous prime is 442125305137. The next prime is 442125305159. The reversal of 442125305144 is 441503521244.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×442125305144² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27632831564 + ... + 27632831579.

It is an arithmetic number, because the mean of its divisors is an integer number (103623118395).

Almost surely, 2^442125305144 is an apocalyptic number.

It is an amenable number.

442125305144 is a deficient number, since it is larger than the sum of its proper divisors (386859642016).

442125305144 is a wasteful number, since it uses less digits than its factorization.

442125305144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55265663149 (or 55265663145 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 442125305144 its reverse (441503521244), we get a palindrome (883628826388).

The spelling of 442125305144 in words is "four hundred forty-two billion, one hundred twenty-five million, three hundred five thousand, one hundred forty-four".