42223235440 has 40 divisors (see below), whose sum is σ = 99351797328. Its totient is φ = 16685806080.

The previous prime is 42223235419. The next prime is 42223235441. The reversal of 42223235440 is 4453232224.

42223235440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×42223235440² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42223235441) 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, 3172821 + ... + 3186100.

Almost surely, 2^42223235440 is an apocalyptic number.

42223235440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42223235440 is an abundant number, since it is smaller than the sum of its proper divisors (57128561888).

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

42223235440 is a wasteful number, since it uses less digits than its factorization.

42223235440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6359017 (or 6359011 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 31.

Adding to 42223235440 its reverse (4453232224), we get a palindrome (46676467664).

The spelling of 42223235440 in words is "forty-two billion, two hundred twenty-three million, two hundred thirty-five thousand, four hundred forty".