2405040505 has 16 divisors (see below), whose sum is σ = 3313142784. Its totient is φ = 1641769920.

The previous prime is 2405040493. The next prime is 2405040527. The reversal of 2405040505 is 5050405042.

It is not a de Polignac number, because 2405040505 - 2⁹ = 2405039993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2405040505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146266 + ... + 161875.

It is an arithmetic number, because the mean of its divisors is an integer number (207071424).

Almost surely, 2^2405040505 is an apocalyptic number.

It is an amenable number.

2405040505 is a deficient number, since it is larger than the sum of its proper divisors (908102279).

2405040505 is a wasteful number, since it uses less digits than its factorization.

2405040505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308376.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 2405040505 is about 49041.2123116874. The cubic root of 2405040505 is about 1339.8025447898.

Adding to 2405040505 its reverse (5050405042), we get a palindrome (7455445547).

The spelling of 2405040505 in words is "two billion, four hundred five million, forty thousand, five hundred five".