245405304 has 24 divisors (see below), whose sum is σ = 664639560. Its totient is φ = 81801744.

The previous prime is 245405191. The next prime is 245405327. The reversal of 245405304 is 403504542.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1704132 + ... + 1704275.

It is an arithmetic number, because the mean of its divisors is an integer number (27693315).

Almost surely, 2^245405304 is an apocalyptic number.

245405304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

245405304 is an abundant number, since it is smaller than the sum of its proper divisors (419234256).

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

245405304 is a wasteful number, since it uses less digits than its factorization.

245405304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408419 (or 3408412 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 245405304 is about 15665.4174537419. The cubic root of 245405304 is about 626.0773346398.

Adding to 245405304 its reverse (403504542), we get a palindrome (648909846).

The spelling of 245405304 in words is "two hundred forty-five million, four hundred five thousand, three hundred four".