134340232440 has 128 divisors (see below), whose sum is σ = 404217192960. Its totient is φ = 35717912064.

The previous prime is 134340232423. The next prime is 134340232447. The reversal of 134340232440 is 44232043431.

It is a happy number.

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 = 134340232398 and 134340232407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134340232447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92839797 + ... + 92841243.

It is an arithmetic number, because the mean of its divisors is an integer number (3157946820).

Almost surely, 2^134340232440 is an apocalyptic number.

134340232440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134340232440 is an abundant number, since it is smaller than the sum of its proper divisors (269876960520).

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

134340232440 is a wasteful number, since it uses less digits than its factorization.

134340232440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221 (or 3217 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 134340232440 its reverse (44232043431), we get a palindrome (178572275871).

The spelling of 134340232440 in words is "one hundred thirty-four billion, three hundred forty million, two hundred thirty-two thousand, four hundred forty".