42404044240 has 40 divisors (see below), whose sum is σ = 98597975040. Its totient is φ = 16960142976.

The previous prime is 42404044237. The next prime is 42404044247. The reversal of 42404044240 is 4244040424.

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 = 42404044199 and 42404044208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42404044247) 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, 1754317 + ... + 1778323.

It is an arithmetic number, because the mean of its divisors is an integer number (2464949376).

Almost surely, 2^42404044240 is an apocalyptic number.

42404044240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42404044240 is an abundant number, since it is smaller than the sum of its proper divisors (56193930800).

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

42404044240 is a wasteful number, since it uses less digits than its factorization.

42404044240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46099 (or 46093 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 42404044240 its reverse (4244040424), we get a palindrome (46648084664).

The spelling of 42404044240 in words is "forty-two billion, four hundred four million, forty-four thousand, two hundred forty".