134434640 has 40 divisors (see below), whose sum is σ = 330949800. Its totient is φ = 50610176.

The previous prime is 134434603. The next prime is 134434687. The reversal of 134434640 is 46434431.

It can be written as a sum of positive squares in 4 ways, for example, as 19430464 + 115004176 = 4408^2 + 10724^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 48065 + ... + 50784.

It is an arithmetic number, because the mean of its divisors is an integer number (8273745).

Almost surely, 2^134434640 is an apocalyptic number.

134434640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134434640 is an abundant number, since it is smaller than the sum of its proper divisors (196515160).

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

134434640 is a wasteful number, since it uses less digits than its factorization.

134434640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98879 (or 98873 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 134434640 is about 11594.5952926353. The cubic root of 134434640 is about 512.2756694194.

The spelling of 134434640 in words is "one hundred thirty-four million, four hundred thirty-four thousand, six hundred forty".