342340405 has 16 divisors (see below), whose sum is σ = 451133568. Its totient is φ = 247320000.

The previous prime is 342340367. The next prime is 342340469. The reversal of 342340405 is 504043243.

It is not a de Polignac number, because 342340405 - 2²³ = 333951797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 342340405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12306 + ... + 28915.

It is an arithmetic number, because the mean of its divisors is an integer number (28195848).

Almost surely, 2^342340405 is an apocalyptic number.

It is an amenable number.

342340405 is a deficient number, since it is larger than the sum of its proper divisors (108793163).

342340405 is a wasteful number, since it uses less digits than its factorization.

342340405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41388.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 342340405 is about 18502.4432170457. The cubic root of 342340405 is about 699.5510079888.

Adding to 342340405 its reverse (504043243), we get a palindrome (846383648).

The spelling of 342340405 in words is "three hundred forty-two million, three hundred forty thousand, four hundred five".