134404140 has 48 divisors (see below), whose sum is σ = 405282528. Its totient is φ = 33083904.

The previous prime is 134404129. The next prime is 134404163. The reversal of 134404140 is 41404431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85377 + ... + 86936.

It is an arithmetic number, because the mean of its divisors is an integer number (8443386).

Almost surely, 2^134404140 is an apocalyptic number.

134404140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134404140 is an abundant number, since it is smaller than the sum of its proper divisors (270878388).

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

134404140 is a wasteful number, since it uses less digits than its factorization.

134404140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172338 (or 172336 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 134404140 is about 11593.2799500400. The cubic root of 134404140 is about 512.2369254626.

Adding to 134404140 its reverse (41404431), we get a palindrome (175808571).

The spelling of 134404140 in words is "one hundred thirty-four million, four hundred four thousand, one hundred forty".