134464240 has 20 divisors (see below), whose sum is σ = 312629544. Its totient is φ = 53785664.

The previous prime is 134464217. The next prime is 134464247. The reversal of 134464240 is 42464431.

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

It is a junction number, because it is equal to n+sod(n) for n = 134464199 and 134464208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134464247) 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, 840322 + ... + 840481.

Almost surely, 2^134464240 is an apocalyptic number.

134464240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134464240 is an abundant number, since it is smaller than the sum of its proper divisors (178165304).

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

134464240 is a wasteful number, since it uses less digits than its factorization.

134464240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680816 (or 1680810 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 134464240 is about 11595.8716791796. The cubic root of 134464240 is about 512.3132645091.

The spelling of 134464240 in words is "one hundred thirty-four million, four hundred sixty-four thousand, two hundred forty".