205856802 has 80 divisors (see below), whose sum is σ = 480902400. Its totient is φ = 65746080.

The previous prime is 205856801. The next prime is 205856813. The reversal of 205856802 is 208658502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205856801) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 898824 + ... + 899052.

It is an arithmetic number, because the mean of its divisors is an integer number (6011280).

Almost surely, 2^205856802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 205856802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240451200).

205856802 is an abundant number, since it is smaller than the sum of its proper divisors (275045598).

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

205856802 is a wasteful number, since it uses less digits than its factorization.

205856802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 205856802 is about 14347.7106884687. The cubic root of 205856802 is about 590.4571789258.

The spelling of 205856802 in words is "two hundred five million, eight hundred fifty-six thousand, eight hundred two".