134443240 has 32 divisors (see below), whose sum is σ = 318420000. Its totient is φ = 50946624.

The previous prime is 134443193. The next prime is 134443271. The reversal of 134443240 is 42344431.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87690 + ... + 89209.

It is an arithmetic number, because the mean of its divisors is an integer number (9950625).

Almost surely, 2^134443240 is an apocalyptic number.

134443240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134443240 is an abundant number, since it is smaller than the sum of its proper divisors (183976760).

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

134443240 is a wasteful number, since it uses less digits than its factorization.

134443240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176929 (or 176925 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 134443240 is about 11594.9661491528. The cubic root of 134443240 is about 512.2865928858.

Adding to 134443240 its reverse (42344431), we get a palindrome (176787671).

The spelling of 134443240 in words is "one hundred thirty-four million, four hundred forty-three thousand, two hundred forty".