205172832 has 48 divisors (see below), whose sum is σ = 539784000. Its totient is φ = 68237952.

The previous prime is 205172801. The next prime is 205172833. The reversal of 205172832 is 238271502.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 205172832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205172833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45763 + ... + 50045.

It is an arithmetic number, because the mean of its divisors is an integer number (11245500).

Almost surely, 2^205172832 is an apocalyptic number.

It is an amenable number.

205172832 is an abundant number, since it is smaller than the sum of its proper divisors (334611168).

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

205172832 is a wasteful number, since it uses less digits than its factorization.

205172832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795 (or 4787 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 205172832 is about 14323.8553469378. The cubic root of 205172832 is about 589.8025117062.

The spelling of 205172832 in words is "two hundred five million, one hundred seventy-two thousand, eight hundred thirty-two".