245613456 has 120 divisors (see below), whose sum is σ = 789428640. Its totient is φ = 70502400.

The previous prime is 245613451. The next prime is 245613457. The reversal of 245613456 is 654316542.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 245613456.

It is not an unprimeable number, because it can be changed into a prime (245613451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26016 + ... + 34176.

It is an arithmetic number, because the mean of its divisors is an integer number (6578572).

Almost surely, 2^245613456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245613456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394714320).

245613456 is an abundant number, since it is smaller than the sum of its proper divisors (543815184).

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

245613456 is a wasteful number, since it uses less digits than its factorization.

245613456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8205 (or 8196 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 245613456 is about 15672.0597242354. The cubic root of 245613456 is about 626.2542968857.

Adding to 245613456 its reverse (654316542), we get a palindrome (899929998).

The spelling of 245613456 in words is "two hundred forty-five million, six hundred thirteen thousand, four hundred fifty-six".