2305406405 has 8 divisors (see below), whose sum is σ = 2770215552. Its totient is φ = 1841839888.

The previous prime is 2305406381. The next prime is 2305406437. The reversal of 2305406405 is 5046045032.

2305406405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2305406405 - 2²⁶ = 2238297541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306569 + ... + 313998.

It is an arithmetic number, because the mean of its divisors is an integer number (346276944).

Almost surely, 2^2305406405 is an apocalyptic number.

It is an amenable number.

2305406405 is a deficient number, since it is larger than the sum of its proper divisors (464809147).

2305406405 is an equidigital number, since it uses as much as digits as its factorization.

2305406405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621315.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2305406405 is about 48014.6478170985. The cubic root of 2305406405 is about 1321.0395860402.

The spelling of 2305406405 in words is "two billion, three hundred five million, four hundred six thousand, four hundred five".