42134404420 has 12 divisors (see below), whose sum is σ = 88482249324. Its totient is φ = 16853761760.

The previous prime is 42134404393. The next prime is 42134404457. The reversal of 42134404420 is 2440443124.

It can be written as a sum of positive squares in 2 ways, for example, as 11399405824 + 30734998596 = 106768^2 + 175314^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053360091 + ... + 1053360130.

It is an arithmetic number, because the mean of its divisors is an integer number (7373520777).

Almost surely, 2^42134404420 is an apocalyptic number.

It is an amenable number.

42134404420 is an abundant number, since it is smaller than the sum of its proper divisors (46347844904).

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

42134404420 is a wasteful number, since it uses less digits than its factorization.

42134404420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106720230 (or 2106720228 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 42134404420 its reverse (2440443124), we get a palindrome (44574847544).

The spelling of 42134404420 in words is "forty-two billion, one hundred thirty-four million, four hundred four thousand, four hundred twenty".