73443406 has 8 divisors (see below), whose sum is σ = 110276280. Its totient is φ = 36684648.

The previous prime is 73443401. The next prime is 73443431. The reversal of 73443406 is 60434437.

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

It is a super-3 number, since 3×73443406³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73443401) 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, 15981 + ... + 20056.

It is an arithmetic number, because the mean of its divisors is an integer number (13784535).

Almost surely, 2^73443406 is an apocalyptic number.

73443406 is a deficient number, since it is larger than the sum of its proper divisors (36832874).

73443406 is a wasteful number, since it uses less digits than its factorization.

73443406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37058.

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 73443406 is about 8569.9128350293. The cubic root of 73443406 is about 418.7783966486.

The spelling of 73443406 in words is "seventy-three million, four hundred forty-three thousand, four hundred six".