2405227409 has 4 divisors (see below), whose sum is σ = 2590244916. Its totient is φ = 2220209904.

The previous prime is 2405227399. The next prime is 2405227417. The reversal of 2405227409 is 9047225042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9047225042 = 2 ⋅4523612521.

It can be written as a sum of positive squares in 2 ways, for example, as 375274384 + 2029953025 = 19372^2 + 45055^2 .

It is a cyclic number.

It is not a de Polignac number, because 2405227409 - 2²⁸ = 2136791953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2405227109) 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, 92508734 + ... + 92508759.

It is an arithmetic number, because the mean of its divisors is an integer number (647561229).

Almost surely, 2^2405227409 is an apocalyptic number.

It is an amenable number.

2405227409 is a deficient number, since it is larger than the sum of its proper divisors (185017507).

2405227409 is a wasteful number, since it uses less digits than its factorization.

2405227409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185017506.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 2405227409 is about 49043.1178556176. The cubic root of 2405227409 is about 1339.8372507844.

The spelling of 2405227409 in words is "two billion, four hundred five million, two hundred twenty-seven thousand, four hundred nine".