42403434424 has 96 divisors (see below), whose sum is σ = 91414033920. Its totient is φ = 18367684608.

The previous prime is 42403434419. The next prime is 42403434431. The reversal of 42403434424 is 42443430424.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 42403434424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8800464 + ... + 8805280.

It is an arithmetic number, because the mean of its divisors is an integer number (952229520).

Almost surely, 2^42403434424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42403434424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45707016960).

42403434424 is an abundant number, since it is smaller than the sum of its proper divisors (49010599496).

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

42403434424 is a wasteful number, since it uses less digits than its factorization.

42403434424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5249 (or 5232 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 42403434424 its reverse (42443430424), we get a palindrome (84846864848).

The spelling of 42403434424 in words is "forty-two billion, four hundred three million, four hundred thirty-four thousand, four hundred twenty-four".