134042420 has 24 divisors (see below), whose sum is σ = 282912000. Its totient is φ = 53345952.

The previous prime is 134042417. The next prime is 134042443. The reversal of 134042420 is 24240431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 134042392 and 134042401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12860 + ... + 20819.

It is an arithmetic number, because the mean of its divisors is an integer number (11788000).

Almost surely, 2^134042420 is an apocalyptic number.

134042420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134042420 is an abundant number, since it is smaller than the sum of its proper divisors (148869580).

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

134042420 is a wasteful number, since it uses less digits than its factorization.

134042420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33887 (or 33885 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 134042420 is about 11577.6690227351. The cubic root of 134042420 is about 511.7769872266.

Adding to 134042420 its reverse (24240431), we get a palindrome (158282851).

The spelling of 134042420 in words is "one hundred thirty-four million, forty-two thousand, four hundred twenty".