205020629 has 16 divisors (see below), whose sum is σ = 237271680. Its totient is φ = 175080960.

The previous prime is 205020617. The next prime is 205020631. The reversal of 205020629 is 926020502.

It is a de Polignac number, because none of the positive numbers 2^k-205020629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205020598 and 205020607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205220629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171257 + ... + 172449.

It is an arithmetic number, because the mean of its divisors is an integer number (14829480).

Almost surely, 2^205020629 is an apocalyptic number.

It is an amenable number.

205020629 is a deficient number, since it is larger than the sum of its proper divisors (32251051).

205020629 is a wasteful number, since it uses less digits than its factorization.

205020629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 205020629 is about 14318.5414410826. The cubic root of 205020629 is about 589.6566315754.

The spelling of 205020629 in words is "two hundred five million, twenty thousand, six hundred twenty-nine".