134332440 has 128 divisors (see below), whose sum is σ = 443232000. Its totient is φ = 32299520.

The previous prime is 134332427. The next prime is 134332463. The reversal of 134332440 is 44233431.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 134332440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196339 + ... + 197021.

It is an arithmetic number, because the mean of its divisors is an integer number (3462750).

Almost surely, 2^134332440 is an apocalyptic number.

134332440 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 134332440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221616000).

134332440 is an abundant number, since it is smaller than the sum of its proper divisors (308899560).

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

134332440 is a wasteful number, since it uses less digits than its factorization.

134332440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 134332440 is about 11590.1872288587. The cubic root of 134332440 is about 512.1458223154.

Adding to 134332440 its reverse (44233431), we get a palindrome (178565871).

Subtracting from 134332440 its reverse (44233431), we obtain a palindrome (90099009).

The spelling of 134332440 in words is "one hundred thirty-four million, three hundred thirty-two thousand, four hundred forty".