245744 has 10 divisors (see below), whose sum is σ = 476160. Its totient is φ = 122864.

The previous prime is 245741. The next prime is 245747. The reversal of 245744 is 447542.

It is an interprime number because it is at equal distance from previous prime (245741) and next prime (245747).

It is a super-2 number, since 2×245744² = 120780227072, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 245744.

It is not an unprimeable number, because it can be changed into a prime (245741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7664 + ... + 7695.

It is an arithmetic number, because the mean of its divisors is an integer number (47616).

2²⁴⁵⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

245744 is a deficient number, since it is larger than the sum of its proper divisors (230416).

245744 is a wasteful number, since it uses less digits than its factorization.

245744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15367 (or 15361 counting only the distinct ones).

The product of its digits is 4480, while the sum is 26.

The square root of 245744 is about 495.7257306213. The cubic root of 245744 is about 62.6365229002.

It can be divided in two parts, 245 and 744, that added together give a palindrome (989).

The spelling of 245744 in words is "two hundred forty-five thousand, seven hundred forty-four".