245120435440 has 40 divisors (see below), whose sum is σ = 572175597168. Its totient is φ = 97657536000.

The previous prime is 245120435423. The next prime is 245120435447. The reversal of 245120435440 is 44534021542.

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 = 245120435396 and 245120435405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245120435447) 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, 6083517 + ... + 6123676.

Almost surely, 2^245120435440 is an apocalyptic number.

245120435440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245120435440 is an abundant number, since it is smaller than the sum of its proper divisors (327055161728).

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

245120435440 is a wasteful number, since it uses less digits than its factorization.

245120435440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12207457 (or 12207451 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 245120435440 its reverse (44534021542), we get a palindrome (289654456982).

The spelling of 245120435440 in words is "two hundred forty-five billion, one hundred twenty million, four hundred thirty-five thousand, four hundred forty".