134400020 has 24 divisors (see below), whose sum is σ = 283978464. Its totient is φ = 53428896.

The previous prime is 134400001. The next prime is 134400029. The reversal of 134400020 is 20004431.

It is a junction number, because it is equal to n+sod(n) for n = 134399968 and 134400004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134400029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17354 + ... + 23873.

It is an arithmetic number, because the mean of its divisors is an integer number (11832436).

Almost surely, 2^134400020 is an apocalyptic number.

134400020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134400020 is an abundant number, since it is smaller than the sum of its proper divisors (149578444).

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

134400020 is a wasteful number, since it uses less digits than its factorization.

134400020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41399 (or 41397 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 134400020 is about 11593.1022595335. The cubic root of 134400020 is about 512.2316914033.

Adding to 134400020 its reverse (20004431), we get a palindrome (154404451).

The spelling of 134400020 in words is "one hundred thirty-four million, four hundred thousand, twenty".