73538449 has 4 divisors (see below), whose sum is σ = 74075364. Its totient is φ = 73001536.

The previous prime is 73538419. The next prime is 73538459. The reversal of 73538449 is 94483537.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94483537 = 29 ⋅3258053.

It can be written as a sum of positive squares in 2 ways, for example, as 36084049 + 37454400 = 6007^2 + 6120^2 .

It is a cyclic number.

It is not a de Polignac number, because 73538449 - 2¹¹ = 73536401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73538419) 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, 268252 + ... + 268525.

It is an arithmetic number, because the mean of its divisors is an integer number (18518841).

Almost surely, 2^73538449 is an apocalyptic number.

It is an amenable number.

73538449 is a deficient number, since it is larger than the sum of its proper divisors (536915).

73538449 is a wasteful number, since it uses less digits than its factorization.

73538449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536914.

The product of its digits is 362880, while the sum is 43.

The square root of 73538449 is about 8575.4561977775. The cubic root of 73538449 is about 418.9589656084.

The spelling of 73538449 in words is "seventy-three million, five hundred thirty-eight thousand, four hundred forty-nine".