142423300445440 has 144 divisors (see below), whose sum is σ = 390237287827968. Its totient is φ = 48786571542528.

The previous prime is 142423300445411. The next prime is 142423300445483. The reversal of 142423300445440 is 44544003324241.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 142423300445393 and 142423300445402.

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, 2677324 + ... + 17088436.

It is an arithmetic number, because the mean of its divisors is an integer number (2709981165472).

Almost surely, 2^{142423300445440} is an apocalyptic number.

142423300445440 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 142423300445440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195118643913984).

142423300445440 is an abundant number, since it is smaller than the sum of its proper divisors (247813987382528).

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

142423300445440 is a wasteful number, since it uses less digits than its factorization.

142423300445440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14412244 (or 14412230 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 40.

Adding to 142423300445440 its reverse (44544003324241), we get a palindrome (186967303769681).

The spelling of 142423300445440 in words is "one hundred forty-two trillion, four hundred twenty-three billion, three hundred million, four hundred forty-five thousand, four hundred forty".