134307440 has 20 divisors (see below), whose sum is σ = 312264984. Its totient is φ = 53722944.

The previous prime is 134307427. The next prime is 134307443. The reversal of 134307440 is 44703431.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134307443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839342 + ... + 839501.

Almost surely, 2^134307440 is an apocalyptic number.

134307440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134307440 is an abundant number, since it is smaller than the sum of its proper divisors (177957544).

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

134307440 is a wasteful number, since it uses less digits than its factorization.

134307440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678856 (or 1678850 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 134307440 is about 11589.1086801358. The cubic root of 134307440 is about 512.1140493004.

The spelling of 134307440 in words is "one hundred thirty-four million, three hundred seven thousand, four hundred forty".