2440645001 has 4 divisors (see below), whose sum is σ = 2584212372. Its totient is φ = 2297077632.

The previous prime is 2440644971. The next prime is 2440645003. The reversal of 2440645001 is 1005460442.

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 651270400 + 1789374601 = 25520^2 + 42301^2 .

It is a cyclic number.

It is not a de Polignac number, because 2440645001 - 2³⁰ = 1366903177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2440645003) 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, 71783660 + ... + 71783693.

It is an arithmetic number, because the mean of its divisors is an integer number (646053093).

Almost surely, 2^2440645001 is an apocalyptic number.

It is an amenable number.

2440645001 is a deficient number, since it is larger than the sum of its proper divisors (143567371).

2440645001 is a wasteful number, since it uses less digits than its factorization.

2440645001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143567370.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2440645001 is about 49402.8845412897. The cubic root of 2440645001 is about 1346.3817148278.

The spelling of 2440645001 in words is "two billion, four hundred forty million, six hundred forty-five thousand, one".