134243340 has 192 divisors, whose sum is σ = 479001600. Its totient is φ = 27847680.

The previous prime is 134243311. The next prime is 134243359. The reversal of 134243340 is 43342431.

It is a self number, because there is not a number n which added to its sum of digits gives 134243340.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 226084 + ... + 226676.

It is an arithmetic number, because the mean of its divisors is an integer number (2494800).

Almost surely, 2^134243340 is an apocalyptic number.

134243340 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 134243340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239500800).

134243340 is an abundant number, since it is smaller than the sum of its proper divisors (344758260).

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

134243340 is a wasteful number, since it uses less digits than its factorization.

134243340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 134243340 is about 11586.3428224785. The cubic root of 134243340 is about 512.0325652708.

Adding to 134243340 its reverse (43342431), we get a palindrome (177585771).

Subtracting from 134243340 its reverse (43342431), we obtain a palindrome (90900909).

The spelling of 134243340 in words is "one hundred thirty-four million, two hundred forty-three thousand, three hundred forty".