142445222040 has 192 divisors, whose sum is σ = 471013562880. Its totient is φ = 34436793600.

The previous prime is 142445221943. The next prime is 142445222081. The reversal of 142445222040 is 40222544241.

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

It is a junction number, because it is equal to n+sod(n) for n = 142445221989 and 142445222007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5315475 + ... + 5342205.

It is an arithmetic number, because the mean of its divisors is an integer number (2453195640).

Almost surely, 2^142445222040 is an apocalyptic number.

142445222040 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 142445222040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235506781440).

142445222040 is an abundant number, since it is smaller than the sum of its proper divisors (328568340840).

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

142445222040 is a wasteful number, since it uses less digits than its factorization.

142445222040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27134 (or 27119 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 142445222040 its reverse (40222544241), we get a palindrome (182667766281).

The spelling of 142445222040 in words is "one hundred forty-two billion, four hundred forty-five million, two hundred twenty-two thousand, forty".