245436340344 has 128 divisors (see below), whose sum is σ = 674374740480. Its totient is φ = 73979942400.

The previous prime is 245436340339. The next prime is 245436340351. The reversal of 245436340344 is 443043634542.

It is a super-2 number, since 2×245436340344² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245436340296 and 245436340305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3442579 + ... + 3513149.

It is an arithmetic number, because the mean of its divisors is an integer number (5268552660).

Almost surely, 2^245436340344 is an apocalyptic number.

245436340344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245436340344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337187370240).

245436340344 is an abundant number, since it is smaller than the sum of its proper divisors (428938400136).

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

245436340344 is a wasteful number, since it uses less digits than its factorization.

245436340344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70821 (or 70817 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 42.

Adding to 245436340344 its reverse (443043634542), we get a palindrome (688479974886).

The spelling of 245436340344 in words is "two hundred forty-five billion, four hundred thirty-six million, three hundred forty thousand, three hundred forty-four".