245731050440 has 16 divisors (see below), whose sum is σ = 552894863580. Its totient is φ = 98292420160.

The previous prime is 245731050427. The next prime is 245731050451. The reversal of 245731050440 is 44050137542.

245731050440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 206873967556 + 38857082884 = 454834^2 + 197122^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 245731050440.

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 3 ways as a sum of consecutive naturals, for example, 3071638091 + ... + 3071638170.

Almost surely, 2^245731050440 is an apocalyptic number.

245731050440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245731050440 is an abundant number, since it is smaller than the sum of its proper divisors (307163813140).

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

245731050440 is a wasteful number, since it uses less digits than its factorization.

245731050440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6143276272 (or 6143276268 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

Adding to 245731050440 its reverse (44050137542), we get a palindrome (289781187982).

The spelling of 245731050440 in words is "two hundred forty-five billion, seven hundred thirty-one million, fifty thousand, four hundred forty".