205465630 has 32 divisors (see below), whose sum is σ = 379663200. Its totient is φ = 80026752.

The previous prime is 205465627. The next prime is 205465643. The reversal of 205465630 is 36564502.

205465630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×205465630² = 84432250222593800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 205465592 and 205465601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72276 + ... + 75064.

It is an arithmetic number, because the mean of its divisors is an integer number (11864475).

Almost surely, 2^205465630 is an apocalyptic number.

205465630 is a deficient number, since it is larger than the sum of its proper divisors (174197570).

205465630 is a wasteful number, since it uses less digits than its factorization.

205465630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 205465630 is about 14334.0723452897. The cubic root of 205465630 is about 590.0829434286.

The spelling of 205465630 in words is "two hundred five million, four hundred sixty-five thousand, six hundred thirty".