142444355240 has 64 divisors (see below), whose sum is σ = 370202996160. Its totient is φ = 48751006720.

The previous prime is 142444355227. The next prime is 142444355269. The reversal of 142444355240 is 42553444241.

It is a junction number, because it is equal to n+sod(n) for n = 142444355194 and 142444355203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9514202 + ... + 9529161.

It is an arithmetic number, because the mean of its divisors is an integer number (5784421815).

Almost surely, 2^142444355240 is an apocalyptic number.

142444355240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142444355240 is an abundant number, since it is smaller than the sum of its proper divisors (227758640920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142444355240 is a wasteful number, since it uses less digits than its factorization.

142444355240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19043402 (or 19043398 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 38.

Adding to 142444355240 its reverse (42553444241), we get a palindrome (184997799481).

The spelling of 142444355240 in words is "one hundred forty-two billion, four hundred forty-four million, three hundred fifty-five thousand, two hundred forty".