73344021 has 16 divisors (see below), whose sum is σ = 101094720. Its totient is φ = 47272320.

The previous prime is 73344013. The next prime is 73344043. The reversal of 73344021 is 12044337.

73344021 is nontrivially palindromic in base 15.

It is not a de Polignac number, because 73344021 - 2³ = 73344013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73343982 and 73344000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73344071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7401 + ... + 14193.

It is an arithmetic number, because the mean of its divisors is an integer number (6318420).

Almost surely, 2^73344021 is an apocalyptic number.

It is an amenable number.

73344021 is a deficient number, since it is larger than the sum of its proper divisors (27750699).

73344021 is a wasteful number, since it uses less digits than its factorization.

73344021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6916.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 73344021 is about 8564.1123883331. The cubic root of 73344021 is about 418.5894117729.

Adding to 73344021 its reverse (12044337), we get a palindrome (85388358).

The spelling of 73344021 in words is "seventy-three million, three hundred forty-four thousand, twenty-one".