142430012440 has 32 divisors (see below), whose sum is σ = 321153796080. Its totient is φ = 56850001792.

The previous prime is 142430012401. The next prime is 142430012449. The reversal of 142430012440 is 44210034241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142430012449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3793687 + ... + 3831046.

Almost surely, 2^142430012440 is an apocalyptic number.

142430012440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142430012440 is an abundant number, since it is smaller than the sum of its proper divisors (178723783640).

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

142430012440 is a wasteful number, since it uses less digits than its factorization.

142430012440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7625211 (or 7625207 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 142430012440 its reverse (44210034241), we get a palindrome (186640046681).

The spelling of 142430012440 in words is "one hundred forty-two billion, four hundred thirty million, twelve thousand, four hundred forty".