42231224440 has 16 divisors (see below), whose sum is σ = 95020255080. Its totient is φ = 16892489760.

The previous prime is 42231224411. The next prime is 42231224443. The reversal of 42231224440 is 4442213224.

42231224440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42231224399 and 42231224408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42231224443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527890266 + ... + 527890345.

Almost surely, 2^42231224440 is an apocalyptic number.

42231224440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42231224440 is an abundant number, since it is smaller than the sum of its proper divisors (52789030640).

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

42231224440 is a wasteful number, since it uses less digits than its factorization.

42231224440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055780622 (or 1055780618 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 42231224440 its reverse (4442213224), we get a palindrome (46673437664).

The spelling of 42231224440 in words is "forty-two billion, two hundred thirty-one million, two hundred twenty-four thousand, four hundred forty".