134440040 has 32 divisors (see below), whose sum is σ = 345703680. Its totient is φ = 46093632.

The previous prime is 134440039. The next prime is 134440049. The reversal of 134440040 is 40044431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 134439994 and 134440021.

It is not an unprimeable number, because it can be changed into a prime (134440049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239792 + ... + 240351.

It is an arithmetic number, because the mean of its divisors is an integer number (10803240).

Almost surely, 2^134440040 is an apocalyptic number.

134440040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134440040 is an abundant number, since it is smaller than the sum of its proper divisors (211263640).

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

134440040 is a wasteful number, since it uses less digits than its factorization.

134440040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480161 (or 480157 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 134440040 is about 11594.8281574157. The cubic root of 134440040 is about 512.2825283946.

Adding to 134440040 its reverse (40044431), we get a palindrome (174484471).

The spelling of 134440040 in words is "one hundred thirty-four million, four hundred forty thousand, forty".