245311320 has 64 divisors (see below), whose sum is σ = 738551520. Its totient is φ = 65183744.

The previous prime is 245311301. The next prime is 245311333. The reversal of 245311320 is 23113542.

It is a congruent number.

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, 31672 + ... + 38648.

Almost surely, 2^245311320 is an apocalyptic number.

245311320 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 245311320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369275760).

245311320 is an abundant number, since it is smaller than the sum of its proper divisors (493240200).

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

245311320 is a wasteful number, since it uses less digits than its factorization.

245311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7284 (or 7280 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 245311320 is about 15662.4174379308. The cubic root of 245311320 is about 625.9974005275.

Adding to 245311320 its reverse (23113542), we get a palindrome (268424862).

The spelling of 245311320 in words is "two hundred forty-five million, three hundred eleven thousand, three hundred twenty".