42243345440 has 96 divisors (see below), whose sum is σ = 100667810880. Its totient is φ = 16750771200.

The previous prime is 42243345437. The next prime is 42243345461. The reversal of 42243345440 is 4454334224.

It is a self number, because there is not a number n which added to its sum of digits gives 42243345440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24262970 + ... + 24264710.

It is an arithmetic number, because the mean of its divisors is an integer number (1048623030).

Almost surely, 2^42243345440 is an apocalyptic number.

42243345440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42243345440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50333905440).

42243345440 is an abundant number, since it is smaller than the sum of its proper divisors (58424465440).

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

42243345440 is a wasteful number, since it uses less digits than its factorization.

42243345440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986 (or 2978 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 35.

Adding to 42243345440 its reverse (4454334224), we get a palindrome (46697679664).

The spelling of 42243345440 in words is "forty-two billion, two hundred forty-three million, three hundred forty-five thousand, four hundred forty".