134404434 has 20 divisors (see below), whose sum is σ = 301165854. Its totient is φ = 44801424.

The previous prime is 134404429. The next prime is 134404447. The reversal of 134404434 is 434404431.

It can be written as a sum of positive squares in only one way, i.e., 133333209 + 1071225 = 11547^2 + 1035^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 134404398 and 134404407.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 414667 + ... + 414990.

Almost surely, 2^134404434 is an apocalyptic number.

134404434 is an abundant number, since it is smaller than the sum of its proper divisors (166761420).

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

134404434 is an equidigital number, since it uses as much as digits as its factorization.

134404434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829671 (or 829662 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 134404434 is about 11593.2926297925. The cubic root of 134404434 is about 512.2372989569.

Adding to 134404434 its reverse (434404431), we get a palindrome (568808865).

The spelling of 134404434 in words is "one hundred thirty-four million, four hundred four thousand, four hundred thirty-four".