2440569664 has 56 divisors (see below), whose sum is σ = 5269487048. Its totient is φ = 1114767360.

The previous prime is 2440569661. The next prime is 2440569697. The reversal of 2440569664 is 4669650442.

It can be written as a sum of positive squares in 4 ways, for example, as 1000000 + 2439569664 = 1000^2 + 49392^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440569661) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 65584 + ... + 95824.

It is an arithmetic number, because the mean of its divisors is an integer number (94097983).

Almost surely, 2^2440569664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2440569664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2634743524).

2440569664 is an abundant number, since it is smaller than the sum of its proper divisors (2828917384).

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

2440569664 is a wasteful number, since it uses less digits than its factorization.

2440569664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30363 (or 30353 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The square root of 2440569664 is about 49402.1220596848. The cubic root of 2440569664 is about 1346.3678614676.

The spelling of 2440569664 in words is "two billion, four hundred forty million, five hundred sixty-nine thousand, six hundred sixty-four".