42323412420 has 36 divisors (see below), whose sum is σ = 128381018220. Its totient is φ = 11286243264.

The previous prime is 42323412367. The next prime is 42323412421. The reversal of 42323412420 is 2421432324.

42323412420 is a `hidden beast` number, since 4 + 2 + 3 + 234 + 1 + 2 + 420 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18872165376 + 23451247044 = 137376^2 + 153138^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (42323412421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117564855 + ... + 117565214.

It is an arithmetic number, because the mean of its divisors is an integer number (3566139395).

Almost surely, 2^42323412420 is an apocalyptic number.

It is an amenable number.

42323412420 is an abundant number, since it is smaller than the sum of its proper divisors (86057605800).

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

42323412420 is a wasteful number, since it uses less digits than its factorization.

42323412420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235130084 (or 235130079 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 42323412420 its reverse (2421432324), we get a palindrome (44744844744).

The spelling of 42323412420 in words is "forty-two billion, three hundred twenty-three million, four hundred twelve thousand, four hundred twenty".