42243124240 has 80 divisors (see below), whose sum is σ = 100181587968. Its totient is φ = 16559682048.

The previous prime is 42243124201. The next prime is 42243124279. The reversal of 42243124240 is 4242134224.

It is an interprime number because it is at equal distance from previous prime (42243124201) and next prime (42243124279).

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 42243124199 and 42243124208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4094929 + ... + 4105231.

Almost surely, 2^42243124240 is an apocalyptic number.

42243124240 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 42243124240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50090793984).

42243124240 is an abundant number, since it is smaller than the sum of its proper divisors (57938463728).

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

42243124240 is a wasteful number, since it uses less digits than its factorization.

42243124240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11336 (or 11330 counting only the distinct ones).

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

Adding to 42243124240 its reverse (4242134224), we get a palindrome (46485258464).

The spelling of 42243124240 in words is "forty-two billion, two hundred forty-three million, one hundred twenty-four thousand, two hundred forty".