73445240434 has 8 divisors (see below), whose sum is σ = 110394079488. Its totient is φ = 36647213940.

The previous prime is 73445240431. The next prime is 73445240441. The reversal of 73445240434 is 43404254437.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (73445240431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37701922 + ... + 37703869.

It is an arithmetic number, because the mean of its divisors is an integer number (13799259936).

Almost surely, 2^73445240434 is an apocalyptic number.

73445240434 is a deficient number, since it is larger than the sum of its proper divisors (36948839054).

73445240434 is a wasteful number, since it uses less digits than its factorization.

73445240434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75406280.

The product of its (nonzero) digits is 645120, while the sum is 40.

The spelling of 73445240434 in words is "seventy-three billion, four hundred forty-five million, two hundred forty thousand, four hundred thirty-four".