204780486 has 32 divisors (see below), whose sum is σ = 422206848. Its totient is φ = 66173760.

The previous prime is 204780481. The next prime is 204780497. The reversal of 204780486 is 684087402.

204780486 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204780481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37545 + ... + 42651.

It is an arithmetic number, because the mean of its divisors is an integer number (13193964).

Almost surely, 2^204780486 is an apocalyptic number.

204780486 is an abundant number, since it is smaller than the sum of its proper divisors (217426362).

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

204780486 is a wasteful number, since it uses less digits than its factorization.

204780486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5316.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 204780486 is about 14310.1532486553. The cubic root of 204780486 is about 589.4263177840.

The spelling of 204780486 in words is "two hundred four million, seven hundred eighty thousand, four hundred eighty-six".