204415073 has 4 divisors (see below), whose sum is σ = 204806448. Its totient is φ = 204023700.

The previous prime is 204415067. The next prime is 204415093. The reversal of 204415073 is 370514402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204415073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204415033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194903 + ... + 195948.

It is an arithmetic number, because the mean of its divisors is an integer number (51201612).

Almost surely, 2^204415073 is an apocalyptic number.

It is an amenable number.

204415073 is a deficient number, since it is larger than the sum of its proper divisors (391375).

204415073 is an equidigital number, since it uses as much as digits as its factorization.

204415073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391374.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 204415073 is about 14297.3799347992. The cubic root of 204415073 is about 589.0755156775.

Adding to 204415073 its reverse (370514402), we get a palindrome (574929475).

The spelling of 204415073 in words is "two hundred four million, four hundred fifteen thousand, seventy-three".