42322403440 has 40 divisors (see below), whose sum is σ = 98549027280. Its totient is φ = 16903251456.

The previous prime is 42322403437. The next prime is 42322403489. The reversal of 42322403440 is 4430422324.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 42322403399 and 42322403408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348669 + ... + 454108.

It is an arithmetic number, because the mean of its divisors is an integer number (2463725682).

Almost surely, 2^42322403440 is an apocalyptic number.

42322403440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42322403440 is an abundant number, since it is smaller than the sum of its proper divisors (56226623840).

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

42322403440 is a wasteful number, since it uses less digits than its factorization.

42322403440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803449 (or 803443 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 42322403440 its reverse (4430422324), we get a palindrome (46752825764).

The spelling of 42322403440 in words is "forty-two billion, three hundred twenty-two million, four hundred three thousand, four hundred forty".