245043520 has 56 divisors (see below), whose sum is σ = 593445600. Its totient is φ = 96348672.

The previous prime is 245043509. The next prime is 245043529. The reversal of 245043520 is 25340542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245043529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12391 + ... + 25369.

Almost surely, 2^245043520 is an apocalyptic number.

245043520 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 245043520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296722800).

245043520 is an abundant number, since it is smaller than the sum of its proper divisors (348402080).

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

245043520 is a wasteful number, since it uses less digits than its factorization.

245043520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13055 (or 13045 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 245043520 is about 15653.8659761734. The cubic root of 245043520 is about 625.7695225472.

The spelling of 245043520 in words is "two hundred forty-five million, forty-three thousand, five hundred twenty".