245930 has 8 divisors (see below), whose sum is σ = 442692. Its totient is φ = 98368.

The previous prime is 245911. The next prime is 245941. The reversal of 245930 is 39542.

It can be written as a sum of positive squares in 2 ways, for example, as 223729 + 22201 = 473^2 + 149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 245896 and 245905.

It is an unprimeable number.

245930 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12287 + ... + 12306.

2²⁴⁵⁹³⁰ is an apocalyptic number.

245930 is a deficient number, since it is larger than the sum of its proper divisors (196762).

245930 is a wasteful number, since it uses less digits than its factorization.

245930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24600.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 245930 is about 495.9132988739. The cubic root of 245930 is about 62.6523218009.

The spelling of 245930 in words is "two hundred forty-five thousand, nine hundred thirty".