42132420420 has 24 divisors (see below), whose sum is σ = 117970777344. Its totient is φ = 11235312096.

The previous prime is 42132420389. The next prime is 42132420427. The reversal of 42132420420 is 2402423124.

It is not an unprimeable number, because it can be changed into a prime (42132420427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351103444 + ... + 351103563.

It is an arithmetic number, because the mean of its divisors is an integer number (4915449056).

Almost surely, 2^42132420420 is an apocalyptic number.

It is an amenable number.

42132420420 is an abundant number, since it is smaller than the sum of its proper divisors (75838356924).

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

42132420420 is a wasteful number, since it uses less digits than its factorization.

42132420420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702207019 (or 702207017 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 42132420420 its reverse (2402423124), we get a palindrome (44534843544).

The spelling of 42132420420 in words is "forty-two billion, one hundred thirty-two million, four hundred twenty thousand, four hundred twenty".