134242434 has 64 divisors (see below), whose sum is σ = 308897280. Its totient is φ = 43728336.

The previous prime is 134242417. The next prime is 134242453. The reversal of 134242434 is 434242431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 134242398 and 134242407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205252 + ... + 205904.

It is an arithmetic number, because the mean of its divisors is an integer number (4826520).

Almost surely, 2^134242434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134242434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154448640).

134242434 is an abundant number, since it is smaller than the sum of its proper divisors (174654846).

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

134242434 is an frugal number, since it uses more digits than its factorization.

134242434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 705 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 134242434 is about 11586.3037246570. The cubic root of 134242434 is about 512.0314133762.

Adding to 134242434 its reverse (434242431), we get a palindrome (568484865).

The spelling of 134242434 in words is "one hundred thirty-four million, two hundred forty-two thousand, four hundred thirty-four".