205253042 has 8 divisors (see below), whose sum is σ = 314430336. Its totient is φ = 100442932.

The previous prime is 205252987. The next prime is 205253051. The reversal of 205253042 is 240352502.

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

It is a super-2 number, since 2×205253042² = 84257622500507528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 205252999 and 205253017.

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, 1091678 + ... + 1091865.

It is an arithmetic number, because the mean of its divisors is an integer number (39303792).

Almost surely, 2^205253042 is an apocalyptic number.

205253042 is a deficient number, since it is larger than the sum of its proper divisors (109177294).

205253042 is a wasteful number, since it uses less digits than its factorization.

205253042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183592.

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

The square root of 205253042 is about 14326.6549480331. The cubic root of 205253042 is about 589.8793605682.

The spelling of 205253042 in words is "two hundred five million, two hundred fifty-three thousand, forty-two".