245320 has 16 divisors (see below), whose sum is σ = 552060. Its totient is φ = 98112.

The previous prime is 245317. The next prime is 245321. The reversal of 245320 is 23542.

It can be written as a sum of positive squares in 2 ways, for example, as 232324 + 12996 = 482^2 + 114^2 .

It is a junction number, because it is equal to n+sod(n) for n = 245294 and 245303.

It is not an unprimeable number, because it can be changed into a prime (245321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3027 + ... + 3106.

2²⁴⁵³²⁰ is an apocalyptic number.

245320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245320 is an abundant number, since it is smaller than the sum of its proper divisors (306740).

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

245320 is a wasteful number, since it uses less digits than its factorization.

245320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6144 (or 6140 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 245320 is about 495.2978901631. The cubic root of 245320 is about 62.6004783790.

Adding to 245320 its reverse (23542), we get a palindrome (268862).

It can be divided in two parts, 245 and 320, that multiplied together give a square (78400 = 280²).

The spelling of 245320 in words is "two hundred forty-five thousand, three hundred twenty".