342709205 has 18 divisors (see below), whose sum is σ = 437764194. Its totient is φ = 257510016.

The previous prime is 342709187. The next prime is 342709253. The reversal of 342709205 is 502907243.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 114789796 + 227919409 = 10714^2 + 15097^2 .

It is not a de Polignac number, because 342709205 - 2¹⁰ = 342708181 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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 17 ways as a sum of consecutive naturals, for example, 703472 + ... + 703958.

It is an arithmetic number, because the mean of its divisors is an integer number (24320233).

Almost surely, 2^342709205 is an apocalyptic number.

It is an amenable number.

342709205 is a deficient number, since it is larger than the sum of its proper divisors (95054989).

342709205 is an frugal number, since it uses more digits than its factorization.

342709205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 342709205 is about 18512.4067857208. The cubic root of 342709205 is about 699.8021243420.

The spelling of 342709205 in words is "three hundred forty-two million, seven hundred nine thousand, two hundred five".