42012434442 has 24 divisors (see below), whose sum is σ = 92357915328. Its totient is φ = 12731040520.

The previous prime is 42012434423. The next prime is 42012434449. The reversal of 42012434442 is 24443421024.

It is not an unprimeable number, because it can be changed into a prime (42012434449) 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, 28933458 + ... + 28934909.

It is an arithmetic number, because the mean of its divisors is an integer number (3848246472).

Almost surely, 2^42012434442 is an apocalyptic number.

42012434442 is an abundant number, since it is smaller than the sum of its proper divisors (50345480886).

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

42012434442 is a wasteful number, since it uses less digits than its factorization.

42012434442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57868394 (or 57868383 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 42012434442 its reverse (24443421024), we get a palindrome (66455855466).

The spelling of 42012434442 in words is "forty-two billion, twelve million, four hundred thirty-four thousand, four hundred forty-two".