2405644005 has 32 divisors (see below), whose sum is σ = 3965842944. Its totient is φ = 1244558336.

The previous prime is 2405643997. The next prime is 2405644019. The reversal of 2405644005 is 5004465042.

It is a cyclic number.

It is not a de Polignac number, because 2405644005 - 2³ = 2405643997 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64567 + ... + 94763.

It is an arithmetic number, because the mean of its divisors is an integer number (123932592).

Almost surely, 2^2405644005 is an apocalyptic number.

It is an amenable number.

2405644005 is a deficient number, since it is larger than the sum of its proper divisors (1560198939).

2405644005 is a wasteful number, since it uses less digits than its factorization.

2405644005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30365.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2405644005 is about 49047.3649139278. The cubic root of 2405644005 is about 1339.9146015600.

The spelling of 2405644005 in words is "two billion, four hundred five million, six hundred forty-four thousand, five".