205484870 has 8 divisors (see below), whose sum is σ = 369872784. Its totient is φ = 82193944.

The previous prime is 205484821. The next prime is 205484941. The reversal of 205484870 is 78484502.

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

It is a congruent number.

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, 10274234 + ... + 10274253.

It is an arithmetic number, because the mean of its divisors is an integer number (46234098).

Almost surely, 2^205484870 is an apocalyptic number.

205484870 is a deficient number, since it is larger than the sum of its proper divisors (164387914).

205484870 is a wasteful number, since it uses less digits than its factorization.

205484870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20548494.

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 205484870 is about 14334.7434577672. The cubic root of 205484870 is about 590.1013614993.

The spelling of 205484870 in words is "two hundred five million, four hundred eighty-four thousand, eight hundred seventy".