245613644 has 24 divisors (see below), whose sum is σ = 445359600. Its totient is φ = 118381760.

The previous prime is 245613631. The next prime is 245613653. The reversal of 245613644 is 446316542.

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 7 ways as a sum of consecutive naturals, for example, 93947 + ... + 96525.

It is an arithmetic number, because the mean of its divisors is an integer number (18556650).

Almost surely, 2^245613644 is an apocalyptic number.

It is an amenable number.

245613644 is a deficient number, since it is larger than the sum of its proper divisors (199745956).

245613644 is a wasteful number, since it uses less digits than its factorization.

245613644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433 (or 3431 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 245613644 is about 15672.0657221695. The cubic root of 245613644 is about 626.2544566703.

The spelling of 245613644 in words is "two hundred forty-five million, six hundred thirteen thousand, six hundred forty-four".