142400443422 has 32 divisors (see below), whose sum is σ = 296385868800. Its totient is φ = 45555587168.

The previous prime is 142400443411. The next prime is 142400443447. The reversal of 142400443422 is 224344004241.

It is a self number, because there is not a number n which added to its sum of digits gives 142400443422.

It is a congruent number.

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, 2421222 + ... + 2479337.

It is an arithmetic number, because the mean of its divisors is an integer number (9262058400).

Almost surely, 2^142400443422 is an apocalyptic number.

142400443422 is an abundant number, since it is smaller than the sum of its proper divisors (153985425378).

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

142400443422 is a wasteful number, since it uses less digits than its factorization.

142400443422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4900760.

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

Adding to 142400443422 its reverse (224344004241), we get a palindrome (366744447663).

The spelling of 142400443422 in words is "one hundred forty-two billion, four hundred million, four hundred forty-three thousand, four hundred twenty-two".