42240344412 has 24 divisors (see below), whose sum is σ = 112640918656. Its totient is φ = 12068669808.

The previous prime is 42240344369. The next prime is 42240344483. The reversal of 42240344412 is 21444304224.

It is a self number, because there is not a number n which added to its sum of digits gives 42240344412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251430538 + ... + 251430705.

Almost surely, 2^42240344412 is an apocalyptic number.

42240344412 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42240344412 is an abundant number, since it is smaller than the sum of its proper divisors (70400574244).

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

42240344412 is a wasteful number, since it uses less digits than its factorization.

42240344412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502861257 (or 502861255 counting only the distinct ones).

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

Adding to 42240344412 its reverse (21444304224), we get a palindrome (63684648636).

The spelling of 42240344412 in words is "forty-two billion, two hundred forty million, three hundred forty-four thousand, four hundred twelve".