205474634 has 16 divisors (see below), whose sum is σ = 321995520. Its totient is φ = 98222880.

The previous prime is 205474627. The next prime is 205474649. The reversal of 205474634 is 436474502.

It is a junction number, because it is equal to n+sod(n) for n = 205474594 and 205474603.

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, 14819 + ... + 25110.

It is an arithmetic number, because the mean of its divisors is an integer number (20124720).

Almost surely, 2^205474634 is an apocalyptic number.

205474634 is a deficient number, since it is larger than the sum of its proper divisors (116520886).

205474634 is a wasteful number, since it uses less digits than its factorization.

205474634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40045.

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 205474634 is about 14334.3864186787. The cubic root of 205474634 is about 590.0915629225.

The spelling of 205474634 in words is "two hundred five million, four hundred seventy-four thousand, six hundred thirty-four".