42420341432 has 32 divisors (see below), whose sum is σ = 92834795520. Its totient is φ = 17793333600.

The previous prime is 42420341429. The next prime is 42420341527. The reversal of 42420341432 is 23414302424.

It is a junction number, because it is equal to n+sod(n) for n = 42420341395 and 42420341404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8055944 + ... + 8061207.

It is an arithmetic number, because the mean of its divisors is an integer number (2901087360).

Almost surely, 2^42420341432 is an apocalyptic number.

It is an amenable number.

42420341432 is an abundant number, since it is smaller than the sum of its proper divisors (50414454088).

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

42420341432 is a wasteful number, since it uses less digits than its factorization.

42420341432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16117211 (or 16117207 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 42420341432 its reverse (23414302424), we get a palindrome (65834643856).

The spelling of 42420341432 in words is "forty-two billion, four hundred twenty million, three hundred forty-one thousand, four hundred thirty-two".