134400236640 has 48 divisors (see below), whose sum is σ = 423360746928. Its totient is φ = 35840062976.

The previous prime is 134400236611. The next prime is 134400236647. The reversal of 134400236640 is 46632004431.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134400236647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139999767 + ... + 140000726.

It is an arithmetic number, because the mean of its divisors is an integer number (8820015561).

Almost surely, 2^134400236640 is an apocalyptic number.

134400236640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134400236640 is an abundant number, since it is smaller than the sum of its proper divisors (288960510288).

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

134400236640 is a wasteful number, since it uses less digits than its factorization.

134400236640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280000511 (or 280000503 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

The spelling of 134400236640 in words is "one hundred thirty-four billion, four hundred million, two hundred thirty-six thousand, six hundred forty".