205429512 has 16 divisors (see below), whose sum is σ = 513573840. Its totient is φ = 68476496.

The previous prime is 205429507. The next prime is 205429531. The reversal of 205429512 is 215924502.

It is a self number, because there is not a number n which added to its sum of digits gives 205429512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4279758 + ... + 4279805.

It is an arithmetic number, because the mean of its divisors is an integer number (32098365).

Almost surely, 2^205429512 is an apocalyptic number.

It is an amenable number.

205429512 is an abundant number, since it is smaller than the sum of its proper divisors (308144328).

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

205429512 is a wasteful number, since it uses less digits than its factorization.

205429512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8559572 (or 8559568 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 205429512 is about 14332.8124246430. The cubic root of 205429512 is about 590.0483652777.

The spelling of 205429512 in words is "two hundred five million, four hundred twenty-nine thousand, five hundred twelve".