73205445 has 16 divisors (see below), whose sum is σ = 117406080. Its totient is φ = 38950464.

The previous prime is 73205413. The next prime is 73205449. The reversal of 73205445 is 54450237.

It is not a de Polignac number, because 73205445 - 2⁵ = 73205413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73205449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1027 + ... + 12143.

It is an arithmetic number, because the mean of its divisors is an integer number (7337880).

Almost surely, 2^73205445 is an apocalyptic number.

It is an amenable number.

73205445 is a deficient number, since it is larger than the sum of its proper divisors (44200635).

73205445 is a wasteful number, since it uses less digits than its factorization.

73205445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11564.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 73205445 is about 8556.0180574845. The cubic root of 73205445 is about 418.3256183223.

The spelling of 73205445 in words is "seventy-three million, two hundred five thousand, four hundred forty-five".