134240040 has 192 divisors, whose sum is σ = 481852800. Its totient is φ = 32140800.

The previous prime is 134240011. The next prime is 134240047. The reversal of 134240040 is 40042431.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 134239995 and 134240022.

It is not an unprimeable number, because it can be changed into a prime (134240047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 431485 + ... + 431795.

It is an arithmetic number, because the mean of its divisors is an integer number (2509650).

Almost surely, 2^134240040 is an apocalyptic number.

134240040 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 134240040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240926400).

134240040 is an abundant number, since it is smaller than the sum of its proper divisors (347612760).

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

134240040 is a wasteful number, since it uses less digits than its factorization.

134240040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 134240040 is about 11586.2004125598. The cubic root of 134240040 is about 512.0283696032.

Adding to 134240040 its reverse (40042431), we get a palindrome (174282471).

The spelling of 134240040 in words is "one hundred thirty-four million, two hundred forty thousand, forty".