142242203240040 has 256 divisors, whose sum is σ = 433505157120000. Its totient is φ = 37330670361600.

The previous prime is 142242203239993. The next prime is 142242203240107. The reversal of 142242203240040 is 40042302242241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14527847545 + ... + 14527857335.

It is an arithmetic number, because the mean of its divisors is an integer number (1693379520000).

Almost surely, 2^{142242203240040} is an apocalyptic number.

142242203240040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142242203240040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216752578560000).

142242203240040 is an abundant number, since it is smaller than the sum of its proper divisors (291262953879960).

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

142242203240040 is a wasteful number, since it uses less digits than its factorization.

142242203240040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12728 (or 12724 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 142242203240040 its reverse (40042302242241), we get a palindrome (182284505482281).

The spelling of 142242203240040 in words is "one hundred forty-two trillion, two hundred forty-two billion, two hundred three million, two hundred forty thousand, forty".