342405005 has 4 divisors (see below), whose sum is σ = 410886012. Its totient is φ = 273924000.

The previous prime is 342404987. The next prime is 342405031. The reversal of 342405005 is 500504243.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98982601 + 243422404 = 9949^2 + 15602^2 .

It is not a de Polignac number, because 342405005 - 2¹² = 342400909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34240496 + ... + 34240505.

It is an arithmetic number, because the mean of its divisors is an integer number (102721503).

Almost surely, 2^342405005 is an apocalyptic number.

It is an amenable number.

342405005 is a deficient number, since it is larger than the sum of its proper divisors (68481007).

342405005 is an equidigital number, since it uses as much as digits as its factorization.

342405005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68481006.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 342405005 is about 18504.1888500955. The cubic root of 342405005 is about 699.5950072287.

Adding to 342405005 its reverse (500504243), we get a palindrome (842909248).

The spelling of 342405005 in words is "three hundred forty-two million, four hundred five thousand, five".