2405298665 has 16 divisors (see below), whose sum is σ = 3598577280. Its totient is φ = 1499406720.

The previous prime is 2405298659. The next prime is 2405298667. The reversal of 2405298665 is 5668925042.

It is a happy number.

It is not a de Polignac number, because 2405298665 - 2⁸ = 2405298409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2405298667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3123380 + ... + 3124149.

It is an arithmetic number, because the mean of its divisors is an integer number (224911080).

Almost surely, 2^2405298665 is an apocalyptic number.

It is an amenable number.

2405298665 is a deficient number, since it is larger than the sum of its proper divisors (1193278615).

2405298665 is a wasteful number, since it uses less digits than its factorization.

2405298665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6247552.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The square root of 2405298665 is about 49043.8443130226. The cubic root of 2405298665 is about 1339.8504817579.

The spelling of 2405298665 in words is "two billion, four hundred five million, two hundred ninety-eight thousand, six hundred sixty-five".