245984 has 12 divisors (see below), whose sum is σ = 484344. Its totient is φ = 122976.

The previous prime is 245983. The next prime is 245989. The reversal of 245984 is 489542.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 7687 = 245984 / (2 + 4 + 5 + 9 + 8 + 4).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 245984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245981) 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 as a sum of consecutive naturals, namely, 3812 + ... + 3875.

It is an arithmetic number, because the mean of its divisors is an integer number (40362).

2²⁴⁵⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

245984 is a deficient number, since it is larger than the sum of its proper divisors (238360).

245984 is an equidigital number, since it uses as much as digits as its factorization.

245984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7697 (or 7689 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 245984 is about 495.9677408864. The cubic root of 245984 is about 62.6569070863.

Adding to 245984 its sum of digits (32), we get a square (246016 = 496²).

The spelling of 245984 in words is "two hundred forty-five thousand, nine hundred eighty-four".