245864 has 16 divisors (see below), whose sum is σ = 468420. Its totient is φ = 120960.

The previous prime is 245863. The next prime is 245881. The reversal of 245864 is 468542.

It can be written as a sum of positive squares in 2 ways, for example, as 220900 + 24964 = 470^2 + 158^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 245864.

It is not an unprimeable number, because it can be changed into a prime (245863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374 + ... + 794.

2²⁴⁵⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

245864 is a deficient number, since it is larger than the sum of its proper divisors (222556).

245864 is a wasteful number, since it uses less digits than its factorization.

245864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 496 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 245864 is about 495.8467505187. The cubic root of 245864 is about 62.6467166514.

The spelling of 245864 in words is "two hundred forty-five thousand, eight hundred sixty-four".