205800494 has 8 divisors (see below), whose sum is σ = 315879960. Its totient is φ = 100507176.

The previous prime is 205800493. The next prime is 205800503. The reversal of 205800494 is 494008502.

205800494 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 205800494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205800493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1196429 + ... + 1196600.

It is an arithmetic number, because the mean of its divisors is an integer number (39484995).

Almost surely, 2^205800494 is an apocalyptic number.

205800494 is a deficient number, since it is larger than the sum of its proper divisors (110079466).

205800494 is a wasteful number, since it uses less digits than its factorization.

205800494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393074.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 205800494 is about 14345.7482899987. The cubic root of 205800494 is about 590.4033381096.

Adding to 205800494 its reverse (494008502), we get a palindrome (699808996).

The spelling of 205800494 in words is "two hundred five million, eight hundred thousand, four hundred ninety-four".