205394460 has 48 divisors (see below), whose sum is σ = 578116896. Its totient is φ = 54484992.

The previous prime is 205394447. The next prime is 205394521. The reversal of 205394460 is 64493502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2712 + ... + 20448.

It is an arithmetic number, because the mean of its divisors is an integer number (12044102).

Almost surely, 2^205394460 is an apocalyptic number.

205394460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205394460 is an abundant number, since it is smaller than the sum of its proper divisors (372722436).

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

205394460 is a wasteful number, since it uses less digits than its factorization.

205394460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17942 (or 17940 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 205394460 is about 14331.5895838529. The cubic root of 205394460 is about 590.0148038036.

The spelling of 205394460 in words is "two hundred five million, three hundred ninety-four thousand, four hundred sixty".