205443426 has 16 divisors (see below), whose sum is σ = 415838304. Its totient is φ = 67655904.

The previous prime is 205443401. The next prime is 205443431. The reversal of 205443426 is 624344502.

205443426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 205443393 and 205443402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205771 + ... + 206766.

It is an arithmetic number, because the mean of its divisors is an integer number (25989894).

Almost surely, 2^205443426 is an apocalyptic number.

205443426 is an abundant number, since it is smaller than the sum of its proper divisors (210394878).

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

205443426 is a wasteful number, since it uses less digits than its factorization.

205443426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412625.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 205443426 is about 14333.2978061575. The cubic root of 205443426 is about 590.0616865503.

Adding to 205443426 its reverse (624344502), we get a palindrome (829787928).

The spelling of 205443426 in words is "two hundred five million, four hundred forty-three thousand, four hundred twenty-six".