134644020 has 96 divisors (see below), whose sum is σ = 434827008. Its totient is φ = 30492672.

The previous prime is 134644007. The next prime is 134644021. The reversal of 134644020 is 20446431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134644021) 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, 46042 + ... + 48878.

It is an arithmetic number, because the mean of its divisors is an integer number (4529448).

Almost surely, 2^134644020 is an apocalyptic number.

134644020 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 134644020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217413504).

134644020 is an abundant number, since it is smaller than the sum of its proper divisors (300182988).

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

134644020 is a wasteful number, since it uses less digits than its factorization.

134644020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969 (or 2967 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 134644020 is about 11603.6209865714. The cubic root of 134644020 is about 512.5414854381.

The spelling of 134644020 in words is "one hundred thirty-four million, six hundred forty-four thousand, twenty".