142034400420 has 72 divisors (see below), whose sum is σ = 437137300992. Its totient is φ = 34432580160.

The previous prime is 142034400419. The next prime is 142034400433. The reversal of 142034400420 is 24004430241.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9774724 + ... + 9789243.

Almost surely, 2^142034400420 is an apocalyptic number.

142034400420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142034400420 is an abundant number, since it is smaller than the sum of its proper divisors (295102900572).

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

142034400420 is a wasteful number, since it uses less digits than its factorization.

142034400420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19564001 (or 19563988 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 142034400420 its reverse (24004430241), we get a palindrome (166038830661).

The spelling of 142034400420 in words is "one hundred forty-two billion, thirty-four million, four hundred thousand, four hundred twenty".