245805824 has 72 divisors (see below), whose sum is σ = 548568720. Its totient is φ = 108953600.

The previous prime is 245805823. The next prime is 245805871. The reversal of 245805824 is 428508542.

245805824 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×245805824² = 120841006224637952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245805823) 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, 114392 + ... + 116520.

It is an arithmetic number, because the mean of its divisors is an integer number (7619010).

Almost surely, 2^245805824 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 245805824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274284360).

245805824 is an abundant number, since it is smaller than the sum of its proper divisors (302762896).

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

245805824 is a wasteful number, since it uses less digits than its factorization.

245805824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197 (or 2183 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 38.

The square root of 245805824 is about 15678.1958145700. The cubic root of 245805824 is about 626.4177513514.

The spelling of 245805824 in words is "two hundred forty-five million, eight hundred five thousand, eight hundred twenty-four".