493453405 has 8 divisors (see below), whose sum is σ = 593823672. Its totient is φ = 393643008.

The previous prime is 493453399. The next prime is 493453421. The reversal of 493453405 is 504354394.

It can be written as a sum of positive squares in 4 ways, for example, as 6853924 + 486599481 = 2618^2 + 22059^2 .

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

It is not a de Polignac number, because 493453405 - 2⁷ = 493453277 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 7 ways as a sum of consecutive naturals, for example, 138024 + ... + 141553.

It is an arithmetic number, because the mean of its divisors is an integer number (74227959).

Almost surely, 2^493453405 is an apocalyptic number.

It is an amenable number.

493453405 is a deficient number, since it is larger than the sum of its proper divisors (100370267).

493453405 is a wasteful number, since it uses less digits than its factorization.

493453405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279935.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 493453405 is about 22213.8111318162. The cubic root of 493453405 is about 790.2212727395.

The spelling of 493453405 in words is "four hundred ninety-three million, four hundred fifty-three thousand, four hundred five".