73443345 has 16 divisors (see below), whose sum is σ = 117680640. Its totient is φ = 39112704.

The previous prime is 73443343. The next prime is 73443367. The reversal of 73443345 is 54334437.

It is not a de Polignac number, because 73443345 - 2¹ = 73443343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73443343) 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, 8352 + ... + 14718.

It is an arithmetic number, because the mean of its divisors is an integer number (7355040).

Almost surely, 2^73443345 is an apocalyptic number.

It is an amenable number.

73443345 is a deficient number, since it is larger than the sum of its proper divisors (44237295).

73443345 is a wasteful number, since it uses less digits than its factorization.

73443345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144.

The product of its digits is 60480, while the sum is 33.

The square root of 73443345 is about 8569.9092760659. The cubic root of 73443345 is about 418.7782807068.

The spelling of 73443345 in words is "seventy-three million, four hundred forty-three thousand, three hundred forty-five".