205062020 has 48 divisors (see below), whose sum is σ = 450793728. Its totient is φ = 78207360.

The previous prime is 205062019. The next prime is 205062023. The reversal of 205062020 is 20260502.

It is a self number, because there is not a number n which added to its sum of digits gives 205062020.

It is not an unprimeable number, because it can be changed into a prime (205062023) 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, 211577 + ... + 212543.

It is an arithmetic number, because the mean of its divisors is an integer number (9391536).

Almost surely, 2^205062020 is an apocalyptic number.

205062020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 205062020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225396864).

205062020 is an abundant number, since it is smaller than the sum of its proper divisors (245731708).

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

205062020 is a wasteful number, since it uses less digits than its factorization.

205062020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 205062020 is about 14319.9867318374. The cubic root of 205062020 is about 589.6963102417.

The spelling of 205062020 in words is "two hundred five million, sixty-two thousand, twenty".