204620 has 24 divisors (see below), whose sum is σ = 463344. Its totient is φ = 75456.

The previous prime is 204613. The next prime is 204623. The reversal of 204620 is 26402.

It is a junction number, because it is equal to n+sod(n) for n = 204595 and 204604.

It is not an unprimeable number, because it can be changed into a prime (204623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134 + ... + 653.

It is an arithmetic number, because the mean of its divisors is an integer number (19306).

2²⁰⁴⁶²⁰ is an apocalyptic number.

204620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204620 is an abundant number, since it is smaller than the sum of its proper divisors (258724).

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

204620 is a wasteful number, since it uses less digits than its factorization.

204620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 204620 is about 452.3494224601. The cubic root of 204620 is about 58.9272300189.

The spelling of 204620 in words is "two hundred four thousand, six hundred twenty".