205853450 has 48 divisors (see below), whose sum is σ = 435882816. Its totient is φ = 71596800.

The previous prime is 205853449. The next prime is 205853477. The reversal of 205853450 is 54358502.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4514 + ... + 20786.

It is an arithmetic number, because the mean of its divisors is an integer number (9080892).

Almost surely, 2^205853450 is an apocalyptic number.

205853450 is an abundant number, since it is smaller than the sum of its proper divisors (230029366).

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

205853450 is a wasteful number, since it uses less digits than its factorization.

205853450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16319 (or 16314 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 205853450 is about 14347.5938749325. The cubic root of 205853450 is about 590.4539740714.

The spelling of 205853450 in words is "two hundred five million, eight hundred fifty-three thousand, four hundred fifty".