142023240340 has 24 divisors (see below), whose sum is σ = 303876142920. Its totient is φ = 55737422208.

The previous prime is 142023240313. The next prime is 142023240343. The reversal of 142023240340 is 43042320241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8992349584 + 133030890756 = 94828^2 + 364734^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142023240343) 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, 66991035 + ... + 66993154.

It is an arithmetic number, because the mean of its divisors is an integer number (12661505955).

Almost surely, 2^142023240340 is an apocalyptic number.

142023240340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142023240340 is an abundant number, since it is smaller than the sum of its proper divisors (161852902580).

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

142023240340 is a wasteful number, since it uses less digits than its factorization.

142023240340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133984251 (or 133984249 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 142023240340 its reverse (43042320241), we get a palindrome (185065560581).

The spelling of 142023240340 in words is "one hundred forty-two billion, twenty-three million, two hundred forty thousand, three hundred forty".