142323334502440 has 256 divisors, whose sum is σ = 398064903667200. Its totient is φ = 44593518145536.

The previous prime is 142323334502369. The next prime is 142323334502471. The reversal of 142323334502440 is 44205433323241.

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 = 142323334502393 and 142323334502402.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 490647127 + ... + 490937113.

It is an arithmetic number, because the mean of its divisors is an integer number (1554941029950).

Almost surely, 2^{142323334502440} is an apocalyptic number.

142323334502440 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 142323334502440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199032451833600).

142323334502440 is an abundant number, since it is smaller than the sum of its proper divisors (255741569164760).

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

142323334502440 is a wasteful number, since it uses less digits than its factorization.

142323334502440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291364 (or 291360 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 40.

Adding to 142323334502440 its reverse (44205433323241), we get a palindrome (186528767825681).

The spelling of 142323334502440 in words is "one hundred forty-two trillion, three hundred twenty-three billion, three hundred thirty-four million, five hundred two thousand, four hundred forty".