4242404040240 has 80 divisors (see below), whose sum is σ = 13151971764576. Its totient is φ = 1131263078400.

The previous prime is 4242404040163. The next prime is 4242404040241. The reversal of 4242404040240 is 420404042424.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4242404040198 and 4242404040207.

It is not an unprimeable number, because it can be changed into a prime (4242404040241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5981250 + ... + 6652830.

Almost surely, 2^{4242404040240} is an apocalyptic number.

4242404040240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4242404040240 is an abundant number, since it is smaller than the sum of its proper divisors (8909567724336).

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

4242404040240 is a wasteful number, since it uses less digits than its factorization.

4242404040240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697918 (or 697912 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 4242404040240 its reverse (420404042424), we get a palindrome (4662808082664).

The spelling of 4242404040240 in words is "four trillion, two hundred forty-two billion, four hundred four million, forty thousand, two hundred forty".