245826 has 24 divisors (see below), whose sum is σ = 609024. Its totient is φ = 70200.

The previous prime is 245821. The next prime is 245849. The reversal of 245826 is 628542.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 245826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 850 + ... + 1101.

It is an arithmetic number, because the mean of its divisors is an integer number (25376).

2²⁴⁵⁸²⁶ is an apocalyptic number.

245826 is an abundant number, since it is smaller than the sum of its proper divisors (363198).

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

245826 is a wasteful number, since it uses less digits than its factorization.

245826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966 (or 1963 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 245826 is about 495.8084307472. The cubic root of 245826 is about 62.6434889891.

The spelling of 245826 in words is "two hundred forty-five thousand, eight hundred twenty-six".