245630 has 48 divisors (see below), whose sum is σ = 574560. Its totient is φ = 73920.

The previous prime is 245629. The next prime is 245639. The reversal of 245630 is 36542.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245639) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8456 + ... + 8484.

It is an arithmetic number, because the mean of its divisors is an integer number (11970).

2²⁴⁵⁶³⁰ is an apocalyptic number.

245630 is an abundant number, since it is smaller than the sum of its proper divisors (328930).

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

245630 is a wasteful number, since it uses less digits than its factorization.

245630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 245630 is about 495.6107343470. The cubic root of 245630 is about 62.6268357622.

The spelling of 245630 in words is "two hundred forty-five thousand, six hundred thirty".