2440006664 has 16 divisors (see below), whose sum is σ = 4598968320. Its totient is φ = 1213615120.

The previous prime is 2440006643. The next prime is 2440006691. The reversal of 2440006664 is 4666000442.

It is a self number, because there is not a number n which added to its sum of digits gives 2440006664.

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 3 ways as a sum of consecutive naturals, for example, 796904 + ... + 799959.

It is an arithmetic number, because the mean of its divisors is an integer number (287435520).

Almost surely, 2^2440006664 is an apocalyptic number.

It is an amenable number.

2440006664 is a deficient number, since it is larger than the sum of its proper divisors (2158961656).

2440006664 is a wasteful number, since it uses less digits than its factorization.

2440006664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597060 (or 1597056 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 2440006664 is about 49396.4235952361. The cubic root of 2440006664 is about 1346.2643250663.

The spelling of 2440006664 in words is "two billion, four hundred forty million, six thousand, six hundred sixty-four".