205369730 has 16 divisors (see below), whose sum is σ = 381590784. Its totient is φ = 79497840.

The previous prime is 205369729. The next prime is 205369733. The reversal of 205369730 is 37963502.

It is not an unprimeable number, because it can be changed into a prime (205369733) by changing a digit.

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, 330932 + ... + 331551.

It is an arithmetic number, because the mean of its divisors is an integer number (23849424).

Almost surely, 2^205369730 is an apocalyptic number.

205369730 is a deficient number, since it is larger than the sum of its proper divisors (176221054).

205369730 is a wasteful number, since it uses less digits than its factorization.

205369730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662521.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 205369730 is about 14330.7267784994. The cubic root of 205369730 is about 589.9911231069.

The spelling of 205369730 in words is "two hundred five million, three hundred sixty-nine thousand, seven hundred thirty".