204656676 has 144 divisors (see below), whose sum is σ = 611404416. Its totient is φ = 52005888.

The previous prime is 204656629. The next prime is 204656677. The reversal of 204656676 is 676656402.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204656677) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 515310 + ... + 515706.

It is an arithmetic number, because the mean of its divisors is an integer number (4245864).

Almost surely, 2^204656676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204656676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305702208).

204656676 is an abundant number, since it is smaller than the sum of its proper divisors (406747740).

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

204656676 is a wasteful number, since it uses less digits than its factorization.

204656676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 204656676 is about 14305.8266451121. The cubic root of 204656676 is about 589.3075050559.

The spelling of 204656676 in words is "two hundred four million, six hundred fifty-six thousand, six hundred seventy-six".