73440841 has 4 divisors (see below), whose sum is σ = 74127312. Its totient is φ = 72754372.

The previous prime is 73440823. The next prime is 73440853. The reversal of 73440841 is 14804437.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14804437 = 53 ⋅279329.

It is a cyclic number.

It is not a de Polignac number, because 73440841 - 2²³ = 65052233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73444841) 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, 343075 + ... + 343288.

It is an arithmetic number, because the mean of its divisors is an integer number (18531828).

Almost surely, 2^73440841 is an apocalyptic number.

It is an amenable number.

73440841 is a deficient number, since it is larger than the sum of its proper divisors (686471).

73440841 is a wasteful number, since it uses less digits than its factorization.

73440841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686470.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 73440841 is about 8569.7631822589. The cubic root of 73440841 is about 418.7735213342.

It can be divided in two parts, 734408 and 41, that added together give a square (734449 = 857²).

The spelling of 73440841 in words is "seventy-three million, four hundred forty thousand, eight hundred forty-one".