142415440520 has 64 divisors (see below), whose sum is σ = 330749568000. Its totient is φ = 55147910400.

The previous prime is 142415440493. The next prime is 142415440537. The reversal of 142415440520 is 25044514241.

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, 52745 + ... + 536295.

It is an arithmetic number, because the mean of its divisors is an integer number (5167962000).

Almost surely, 2^142415440520 is an apocalyptic number.

142415440520 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 142415440520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165374784000).

142415440520 is an abundant number, since it is smaller than the sum of its proper divisors (188334127480).

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

142415440520 is a wasteful number, since it uses less digits than its factorization.

142415440520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483798 (or 483794 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 142415440520 its reverse (25044514241), we get a palindrome (167459954761).

The spelling of 142415440520 in words is "one hundred forty-two billion, four hundred fifteen million, four hundred forty thousand, five hundred twenty".