134438340 has 48 divisors (see below), whose sum is σ = 378709632. Its totient is φ = 35632896.

The previous prime is 134438323. The next prime is 134438341. The reversal of 134438340 is 43834431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 134438298 and 134438307.

It is not an unprimeable number, because it can be changed into a prime (134438341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3312 + ... + 16728.

It is an arithmetic number, because the mean of its divisors is an integer number (7889784).

Almost surely, 2^134438340 is an apocalyptic number.

134438340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134438340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189354816).

134438340 is an abundant number, since it is smaller than the sum of its proper divisors (244271292).

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

134438340 is a wasteful number, since it uses less digits than its factorization.

134438340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13596 (or 13594 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 134438340 is about 11594.7548486374. The cubic root of 134438340 is about 512.2803691074.

The spelling of 134438340 in words is "one hundred thirty-four million, four hundred thirty-eight thousand, three hundred forty".