205423835 has 8 divisors (see below), whose sum is σ = 261009216. Its totient is φ = 154672000.

The previous prime is 205423819. The next prime is 205423859. The reversal of 205423835 is 538324502.

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

It is not a de Polignac number, because 205423835 - 2⁴ = 205423819 is a prime.

It is a super-2 number, since 2×205423835² = 84397903972214450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1208291 + ... + 1208460.

It is an arithmetic number, because the mean of its divisors is an integer number (32626152).

Almost surely, 2^205423835 is an apocalyptic number.

205423835 is a deficient number, since it is larger than the sum of its proper divisors (55585381).

205423835 is a wasteful number, since it uses less digits than its factorization.

205423835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416773.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 205423835 is about 14332.6143811937. The cubic root of 205423835 is about 590.0429299414.

The spelling of 205423835 in words is "two hundred five million, four hundred twenty-three thousand, eight hundred thirty-five".