205357234 has 8 divisors (see below), whose sum is σ = 308101788. Its totient is φ = 102656640.

The previous prime is 205357223. The next prime is 205357247. The reversal of 205357234 is 432753502.

It can be written as a sum of positive squares in 2 ways, for example, as 200081025 + 5276209 = 14145^2 + 2297^2 .

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

It is a super-2 number, since 2×205357234² = 84343187112261512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 205357196 and 205357205.

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, 5854 + ... + 21094.

Almost surely, 2^205357234 is an apocalyptic number.

205357234 is a deficient number, since it is larger than the sum of its proper divisors (102744554).

205357234 is a wasteful number, since it uses less digits than its factorization.

205357234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21980.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 205357234 is about 14330.2907856052. The cubic root of 205357234 is about 589.9791565939.

The spelling of 205357234 in words is "two hundred five million, three hundred fifty-seven thousand, two hundred thirty-four".