42444232142 has 16 divisors (see below), whose sum is σ = 68597081280. Its totient is φ = 19580125152.

The previous prime is 42444232121. The next prime is 42444232147. The reversal of 42444232142 is 24123244424.

It is a junction number, because it is equal to n+sod(n) for n = 42444232099 and 42444232108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42444232147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342017 + ... + 449292.

It is an arithmetic number, because the mean of its divisors is an integer number (4287317580).

Almost surely, 2^42444232142 is an apocalyptic number.

42444232142 is a deficient number, since it is larger than the sum of its proper divisors (26152849138).

42444232142 is a wasteful number, since it uses less digits than its factorization.

42444232142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793387.

The product of its digits is 49152, while the sum is 32.

Adding to 42444232142 its reverse (24123244424), we get a palindrome (66567476566).

The spelling of 42444232142 in words is "forty-two billion, four hundred forty-four million, two hundred thirty-two thousand, one hundred forty-two".