492447357 has 20 divisors (see below), whose sum is σ = 736229340. Its totient is φ = 328031424.

The previous prime is 492447349. The next prime is 492447359. The reversal of 492447357 is 753744294.

492447357 is a `hidden beast` number, since 492 + 44 + 73 + 57 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 245517561 + 246929796 = 15669^2 + 15714^2 .

It is not a de Polignac number, because 492447357 - 2³ = 492447349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492447359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 185713 + ... + 188345.

It is an arithmetic number, because the mean of its divisors is an integer number (36811467).

Almost surely, 2^492447357 is an apocalyptic number.

It is an amenable number.

492447357 is a deficient number, since it is larger than the sum of its proper divisors (243781983).

492447357 is a wasteful number, since it uses less digits than its factorization.

492447357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4954 (or 4945 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 492447357 is about 22191.1549271326. The cubic root of 492447357 is about 789.6838755469.

It can be divided in two parts, 492447 and 357, that added together give a square (492804 = 702²).

The spelling of 492447357 in words is "four hundred ninety-two million, four hundred forty-seven thousand, three hundred fifty-seven".