134242440402 has 64 divisors (see below), whose sum is σ = 314548116480. Its totient is φ = 37400336064.

The previous prime is 134242440377. The next prime is 134242440421. The reversal of 134242440402 is 204044242431.

It is a self number, because there is not a number n which added to its sum of digits gives 134242440402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177849 + ... + 547827.

It is an arithmetic number, because the mean of its divisors is an integer number (4914814320).

Almost surely, 2^134242440402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134242440402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157274058240).

134242440402 is an abundant number, since it is smaller than the sum of its proper divisors (180305676078).

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

134242440402 is a wasteful number, since it uses less digits than its factorization.

134242440402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370207.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 134242440402 its reverse (204044242431), we get a palindrome (338286682833).

The spelling of 134242440402 in words is "one hundred thirty-four billion, two hundred forty-two million, four hundred forty thousand, four hundred two".