11342405 has 4 divisors (see below), whose sum is σ = 13610892. Its totient is φ = 9073920.

The previous prime is 11342351. The next prime is 11342407. The reversal of 11342405 is 50424311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50424311 = 7 ⋅7203473.

It can be written as a sum of positive squares in 2 ways, for example, as 5354596 + 5987809 = 2314^2 + 2447^2 .

It is not a de Polignac number, because 11342405 - 2¹⁶ = 11276869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11342407) 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, 1134236 + ... + 1134245.

It is an arithmetic number, because the mean of its divisors is an integer number (3402723).

Almost surely, 2^11342405 is an apocalyptic number.

It is an amenable number.

11342405 is a deficient number, since it is larger than the sum of its proper divisors (2268487).

11342405 is an equidigital number, since it uses as much as digits as its factorization.

11342405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268486.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 11342405 is about 3367.8487198804. The cubic root of 11342405 is about 224.6820529790.

Adding to 11342405 its reverse (50424311), we get a palindrome (61766716).

The spelling of 11342405 in words is "eleven million, three hundred forty-two thousand, four hundred five".