205798146 has 8 divisors (see below), whose sum is σ = 411596304. Its totient is φ = 68599380.

The previous prime is 205798127. The next prime is 205798157. The reversal of 205798146 is 641897502.

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

205798146 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 205798098 and 205798107.

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, 17149840 + ... + 17149851.

It is an arithmetic number, because the mean of its divisors is an integer number (51449538).

Almost surely, 2^205798146 is an apocalyptic number.

205798146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205798146 is a wasteful number, since it uses less digits than its factorization.

205798146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34299696.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 205798146 is about 14345.6664536716. Note that the first 3 decimals coincide. The cubic root of 205798146 is about 590.4010927760.

The spelling of 205798146 in words is "two hundred five million, seven hundred ninety-eight thousand, one hundred forty-six".