142402222440 has 192 divisors, whose sum is σ = 500458383360. Its totient is φ = 34979665920.

The previous prime is 142402222439. The next prime is 142402222451. The reversal of 142402222440 is 44222204241.

142402222440 is a `hidden beast` number, since 14 + 2 + 402 + 2 + 2 + 244 + 0 = 666.

142402222440 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 in 47 ways as a sum of consecutive naturals, for example, 40105 + ... + 535175.

It is an arithmetic number, because the mean of its divisors is an integer number (2606554080).

Almost surely, 2^142402222440 is an apocalyptic number.

142402222440 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 142402222440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250229191680).

142402222440 is an abundant number, since it is smaller than the sum of its proper divisors (358056160920).

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

142402222440 is a wasteful number, since it uses less digits than its factorization.

142402222440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495152 (or 495145 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 142402222440 its reverse (44222204241), we get a palindrome (186624426681).

The spelling of 142402222440 in words is "one hundred forty-two billion, four hundred two million, two hundred twenty-two thousand, four hundred forty".