134304240 has 80 divisors (see below), whose sum is σ = 475826688. Its totient is φ = 30697728.

The previous prime is 134304223. The next prime is 134304271. The reversal of 134304240 is 42403431.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38292 + ... + 41651.

Almost surely, 2^134304240 is an apocalyptic number.

134304240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134304240 is an abundant number, since it is smaller than the sum of its proper divisors (341522448).

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

134304240 is a wasteful number, since it uses less digits than its factorization.

134304240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79966 (or 79960 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 134304240 is about 11588.9706186529. The cubic root of 134304240 is about 512.1099820698.

Adding to 134304240 its reverse (42403431), we get a palindrome (176707671).

The spelling of 134304240 in words is "one hundred thirty-four million, three hundred four thousand, two hundred forty".