205451330 has 16 divisors (see below), whose sum is σ = 422642880. Its totient is φ = 70440432.

The previous prime is 205451327. The next prime is 205451357. The reversal of 205451330 is 33154502.

205451330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 205451296 and 205451305.

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 7 ways as a sum of consecutive naturals, for example, 1467440 + ... + 1467579.

It is an arithmetic number, because the mean of its divisors is an integer number (26415180).

Almost surely, 2^205451330 is an apocalyptic number.

205451330 is an abundant number, since it is smaller than the sum of its proper divisors (217191550).

205451330 is a wasteful number, since it uses less digits than its factorization.

205451330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935033.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 205451330 is about 14333.5735251193. The cubic root of 205451330 is about 590.0692535772.

The spelling of 205451330 in words is "two hundred five million, four hundred fifty-one thousand, three hundred thirty".