506849405 has 8 divisors (see below), whose sum is σ = 608355384. Its totient is φ = 405388800.

The previous prime is 506849401. The next prime is 506849429. The reversal of 506849405 is 504948605.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17422276 + 489427129 = 4174^2 + 22123^2 .

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

It is not a de Polignac number, because 506849405 - 2² = 506849401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506849401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22325 + ... + 38885.

It is an arithmetic number, because the mean of its divisors is an integer number (76044423).

Almost surely, 2^506849405 is an apocalyptic number.

It is an amenable number.

506849405 is a deficient number, since it is larger than the sum of its proper divisors (101505979).

506849405 is a wasteful number, since it uses less digits than its factorization.

506849405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22687.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 506849405 is about 22513.3161706578. The cubic root of 506849405 is about 797.3083523856.

Subtracting from 506849405 its product of nonzero digits (172800), we obtain a palindrome (506676605).

The spelling of 506849405 in words is "five hundred six million, eight hundred forty-nine thousand, four hundred five".