4240820644 has 12 divisors (see below), whose sum is σ = 7547223600. Its totient is φ = 2084471048.

The previous prime is 4240820641. The next prime is 4240820681. The reversal of 4240820644 is 4460280424.

It is not an unprimeable number, because it can be changed into a prime (4240820641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8984554 + ... + 8985025.

It is an arithmetic number, because the mean of its divisors is an integer number (628935300).

Almost surely, 2^4240820644 is an apocalyptic number.

It is an amenable number.

4240820644 is a deficient number, since it is larger than the sum of its proper divisors (3306402956).

4240820644 is a wasteful number, since it uses less digits than its factorization.

4240820644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17969642 (or 17969640 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

The square root of 4240820644 is about 65121.5835495422. The cubic root of 4240820644 is about 1618.6388816079.

The spelling of 4240820644 in words is "four billion, two hundred forty million, eight hundred twenty thousand, six hundred forty-four".