73244138 has 16 divisors (see below), whose sum is σ = 119988000. Its totient is φ = 33255600.

The previous prime is 73244137. The next prime is 73244153. The reversal of 73244138 is 83144237.

It is not an unprimeable number, because it can be changed into a prime (73244131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31868 + ... + 34088.

It is an arithmetic number, because the mean of its divisors is an integer number (7499250).

Almost surely, 2^73244138 is an apocalyptic number.

73244138 is a deficient number, since it is larger than the sum of its proper divisors (46743862).

73244138 is a wasteful number, since it uses less digits than its factorization.

73244138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733.

The product of its digits is 16128, while the sum is 32.

The square root of 73244138 is about 8558.2789157634. The cubic root of 73244138 is about 418.3993078419.

Subtracting 73244138 from its reverse (83144237), we obtain a palindrome (9900099).

The spelling of 73244138 in words is "seventy-three million, two hundred forty-four thousand, one hundred thirty-eight".