134440424 has 8 divisors (see below), whose sum is σ = 252075810. Its totient is φ = 67220208.

The previous prime is 134440399. The next prime is 134440469. The reversal of 134440424 is 424044431.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 70728100 + 63712324 = 8410^2 + 7982^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 134440393 and 134440402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8402519 + ... + 8402534.

Almost surely, 2^134440424 is an apocalyptic number.

It is an amenable number.

134440424 is a deficient number, since it is larger than the sum of its proper divisors (117635386).

134440424 is a wasteful number, since it uses less digits than its factorization.

134440424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16805059 (or 16805055 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 134440424 is about 11594.8447165109. The cubic root of 134440424 is about 512.2830161369.

Adding to 134440424 its reverse (424044431), we get a palindrome (558484855).

The spelling of 134440424 in words is "one hundred thirty-four million, four hundred forty thousand, four hundred twenty-four".