3405142205 has 8 divisors (see below), whose sum is σ = 4090178904. Its totient is φ = 2721441600.

The previous prime is 3405142187. The next prime is 3405142241. The reversal of 3405142205 is 5022415043.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 511347769 + 2893794436 = 22613^2 + 53794^2 .

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

It is not a de Polignac number, because 3405142205 - 2⁶ = 3405142141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328406 + ... + 338615.

It is an arithmetic number, because the mean of its divisors is an integer number (511272363).

Almost surely, 2^3405142205 is an apocalyptic number.

It is an amenable number.

3405142205 is a deficient number, since it is larger than the sum of its proper divisors (685036699).

3405142205 is a wasteful number, since it uses less digits than its factorization.

3405142205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668047.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 3405142205 is about 58353.5963330453. The cubic root of 3405142205 is about 1504.4522835575.

Adding to 3405142205 its reverse (5022415043), we get a palindrome (8427557248).

The spelling of 3405142205 in words is "three billion, four hundred five million, one hundred forty-two thousand, two hundred five".