205400232 has 32 divisors (see below), whose sum is σ = 570556800. Its totient is φ = 68466672.

The previous prime is 205400191. The next prime is 205400233. The reversal of 205400232 is 232004502.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (205400233) 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, 475248 + ... + 475679.

It is an arithmetic number, because the mean of its divisors is an integer number (17829900).

Almost surely, 2^205400232 is an apocalyptic number.

It is an amenable number.

205400232 is an abundant number, since it is smaller than the sum of its proper divisors (365156568).

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

205400232 is a wasteful number, since it uses less digits than its factorization.

205400232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950942 (or 950932 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 205400232 is about 14331.7909557738. The cubic root of 205400232 is about 590.0203306218.

Adding to 205400232 its reverse (232004502), we get a palindrome (437404734).

The spelling of 205400232 in words is "two hundred five million, four hundred thousand, two hundred thirty-two".