242540440425 has 240 divisors, whose sum is σ = 476018104320. Its totient is φ = 121912128000.

The previous prime is 242540440409. The next prime is 242540440433. The reversal of 242540440425 is 524044045242.

242540440425 is a `hidden beast` number, since 242 + 5 + 4 + 0 + 4 + 404 + 2 + 5 = 666.

242540440425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242540440425 - 2⁴ = 242540440409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242540440425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 894983040 + ... + 894983310.

It is an arithmetic number, because the mean of its divisors is an integer number (1983408768).

Almost surely, 2^242540440425 is an apocalyptic number.

242540440425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242540440425 is a deficient number, since it is larger than the sum of its proper divisors (233477663895).

242540440425 is a wasteful number, since it uses less digits than its factorization.

242540440425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 36.

Adding to 242540440425 its reverse (524044045242), we get a palindrome (766584485667).

The spelling of 242540440425 in words is "two hundred forty-two billion, five hundred forty million, four hundred forty thousand, four hundred twenty-five".