42012434444 has 24 divisors (see below), whose sum is σ = 76078321200. Its totient is φ = 20276177600.

The previous prime is 42012434423. The next prime is 42012434449. The reversal of 42012434444 is 44443421024.

It is a super-3 number, since 3×42012434444³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 42012434444.

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 7 ways as a sum of consecutive naturals, for example, 380387 + ... + 478245.

It is an arithmetic number, because the mean of its divisors is an integer number (3169930050).

Almost surely, 2^42012434444 is an apocalyptic number.

It is an amenable number.

42012434444 is a deficient number, since it is larger than the sum of its proper divisors (34065886756).

42012434444 is a wasteful number, since it uses less digits than its factorization.

42012434444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101593 (or 101591 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 42012434444 its reverse (44443421024), we get a palindrome (86455855468).

The spelling of 42012434444 in words is "forty-two billion, twelve million, four hundred thirty-four thousand, four hundred forty-four".