245987856 has 45 divisors (see below), whose sum is σ = 688951471. Its totient is φ = 81933216.

The previous prime is 245987849. The next prime is 245987873. The reversal of 245987856 is 658789542.

The square root of 245987856 is 15684.

It is a perfect power (a square), and thus also a powerful number.

245987856 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is an unprimeable number.

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 in 8 ways as a sum of consecutive naturals, for example, 187555 + ... + 188861.

Almost surely, 2^245987856 is an apocalyptic number.

245987856 is the 15684-th square number.

It is an amenable number.

245987856 is an abundant number, since it is smaller than the sum of its proper divisors (442963615).

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

245987856 is an equidigital number, since it uses as much as digits as its factorization.

245987856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628 (or 1312 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The cubic root of 245987856 is about 626.5723448403.

The spelling of 245987856 in words is "two hundred forty-five million, nine hundred eighty-seven thousand, eight hundred fifty-six".