73340405 has 4 divisors (see below), whose sum is σ = 88008492. Its totient is φ = 58672320.

The previous prime is 73340387. The next prime is 73340441. The reversal of 73340405 is 50404337.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37075921 + 36264484 = 6089^2 + 6022^2 .

It is not a de Polignac number, because 73340405 - 2¹⁸ = 73078261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7334036 + ... + 7334045.

It is an arithmetic number, because the mean of its divisors is an integer number (22002123).

Almost surely, 2^73340405 is an apocalyptic number.

It is an amenable number.

73340405 is a deficient number, since it is larger than the sum of its proper divisors (14668087).

73340405 is a wasteful number, since it uses less digits than its factorization.

73340405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14668086.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 73340405 is about 8563.9012722007. The cubic root of 73340405 is about 418.5825325746.

The spelling of 73340405 in words is "seventy-three million, three hundred forty thousand, four hundred five".