242431440040 has 64 divisors (see below), whose sum is σ = 547694784000. Its totient is φ = 96577873152.

The previous prime is 242431440037. The next prime is 242431440067. The reversal of 242431440040 is 40044134242.

It is a junction number, because it is equal to n+sod(n) for n = 242431439990 and 242431440008.

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, 12037419 + ... + 12057541.

It is an arithmetic number, because the mean of its divisors is an integer number (8557731000).

Almost surely, 2^242431440040 is an apocalyptic number.

242431440040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242431440040 is an abundant number, since it is smaller than the sum of its proper divisors (305263343960).

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

242431440040 is a wasteful number, since it uses less digits than its factorization.

242431440040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21346 (or 21342 counting only the distinct ones).

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

Adding to 242431440040 its reverse (40044134242), we get a palindrome (282475574282).

The spelling of 242431440040 in words is "two hundred forty-two billion, four hundred thirty-one million, four hundred forty thousand, forty".