2440065601 has 4 divisors (see below), whose sum is σ = 2440509012. Its totient is φ = 2439622192.

The previous prime is 2440065581. The next prime is 2440065637. The reversal of 2440065601 is 1065600442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 552250000 + 1887815601 = 23500^2 + 43449^2 .

It is a cyclic number.

It is not a de Polignac number, because 2440065601 - 2²³ = 2431676993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2440065601.

It is not an unprimeable number, because it can be changed into a prime (2440068601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213346 + ... + 224491.

It is an arithmetic number, because the mean of its divisors is an integer number (610127253).

Almost surely, 2^2440065601 is an apocalyptic number.

It is an amenable number.

2440065601 is a deficient number, since it is larger than the sum of its proper divisors (443411).

2440065601 is an equidigital number, since it uses as much as digits as its factorization.

2440065601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443410.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2440065601 is about 49397.0201631637. The cubic root of 2440065601 is about 1346.2751644003.

The spelling of 2440065601 in words is "two billion, four hundred forty million, sixty-five thousand, six hundred one".