73540369 has 4 divisors (see below), whose sum is σ = 84046144. Its totient is φ = 63034596.

The previous prime is 73540343. The next prime is 73540399. The reversal of 73540369 is 96304537.

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 not a de Polignac number, because 73540369 - 2⁹ = 73539857 is a prime.

It is a super-2 number, since 2×73540369² = 10816371745312322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73540399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5252877 + ... + 5252890.

It is an arithmetic number, because the mean of its divisors is an integer number (21011536).

Almost surely, 2^73540369 is an apocalyptic number.

It is an amenable number.

73540369 is a deficient number, since it is larger than the sum of its proper divisors (10505775).

73540369 is a wasteful number, since it uses less digits than its factorization.

73540369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505774.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 73540369 is about 8575.5681444438. The cubic root of 73540369 is about 418.9626117473.

The spelling of 73540369 in words is "seventy-three million, five hundred forty thousand, three hundred sixty-nine".