2440305666 has 12 divisors (see below), whose sum is σ = 5287328982. Its totient is φ = 813435216.

The previous prime is 2440305653. The next prime is 2440305677. The reversal of 2440305666 is 6665030442.

It can be written as a sum of positive squares in only one way, i.e., 1548029025 + 892276641 = 39345^2 + 29871^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2440305666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67786251 + ... + 67786286.

Almost surely, 2^2440305666 is an apocalyptic number.

2440305666 is an abundant number, since it is smaller than the sum of its proper divisors (2847023316).

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

2440305666 is a wasteful number, since it uses less digits than its factorization.

2440305666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135572545 (or 135572542 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 2440305666 is about 49399.4500576676. The cubic root of 2440305666 is about 1346.3193138894.

The spelling of 2440305666 in words is "two billion, four hundred forty million, three hundred five thousand, six hundred sixty-six".