245843520 has 112 divisors (see below), whose sum is σ = 840638400. Its totient is φ = 60512256.

The previous prime is 245843519. The next prime is 245843537. The reversal of 245843520 is 25348542.

245843520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2631 + ... + 22329.

It is an arithmetic number, because the mean of its divisors is an integer number (7505700).

Almost surely, 2^245843520 is an apocalyptic number.

245843520 is a gapful number since it is divisible by the number (20) 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 245843520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420319200).

245843520 is an abundant number, since it is smaller than the sum of its proper divisors (594794880).

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

245843520 is a wasteful number, since it uses less digits than its factorization.

245843520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19732 (or 19722 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 245843520 is about 15679.3979476254. The cubic root of 245843520 is about 626.4497715264.

The spelling of 245843520 in words is "two hundred forty-five million, eight hundred forty-three thousand, five hundred twenty".