245687944 has 32 divisors (see below), whose sum is σ = 490799520. Its totient is φ = 114898176.

The previous prime is 245687929. The next prime is 245687947. The reversal of 245687944 is 449786542.

It is not an unprimeable number, because it can be changed into a prime (245687947) 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 in 7 ways as a sum of consecutive naturals, for example, 16627 + ... + 27709.

It is an arithmetic number, because the mean of its divisors is an integer number (15337485).

Almost surely, 2^245687944 is an apocalyptic number.

It is an amenable number.

245687944 is a deficient number, since it is larger than the sum of its proper divisors (245111576).

245687944 is a wasteful number, since it uses less digits than its factorization.

245687944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11269 (or 11265 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 49.

The square root of 245687944 is about 15674.4360026127. The cubic root of 245687944 is about 626.3175992197.

The spelling of 245687944 in words is "two hundred forty-five million, six hundred eighty-seven thousand, nine hundred forty-four".