342135251240 has 16 divisors (see below), whose sum is σ = 769804315380. Its totient is φ = 136854100480.

The previous prime is 342135251209. The next prime is 342135251273. The reversal of 342135251240 is 42152531243.

It can be written as a sum of positive squares in 2 ways, for example, as 341315345284 + 819905956 = 584222^2 + 28634^2 .

It is a junction number, because it is equal to n+sod(n) for n = 342135251197 and 342135251206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4276690601 + ... + 4276690680.

Almost surely, 2^342135251240 is an apocalyptic number.

It is an amenable number.

342135251240 is an abundant number, since it is smaller than the sum of its proper divisors (427669064140).

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

342135251240 is a wasteful number, since it uses less digits than its factorization.

342135251240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8553381292 (or 8553381288 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 342135251240 its reverse (42152531243), we get a palindrome (384287782483).

The spelling of 342135251240 in words is "three hundred forty-two billion, one hundred thirty-five million, two hundred fifty-one thousand, two hundred forty".