495449649 has 32 divisors (see below), whose sum is σ = 779725440. Its totient is φ = 309851136.

The previous prime is 495449641. The next prime is 495449663. The reversal of 495449649 is 946944594.

It is a happy number.

495449649 is a `hidden beast` number, since 4 + 9 + 544 + 96 + 4 + 9 = 666.

It is not a de Polignac number, because 495449649 - 2³ = 495449641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 495449595 and 495449604.

It is not an unprimeable number, because it can be changed into a prime (495449641) 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 31 ways as a sum of consecutive naturals, for example, 153082 + ... + 156284.

It is an arithmetic number, because the mean of its divisors is an integer number (24366420).

Almost surely, 2^495449649 is an apocalyptic number.

It is an amenable number.

495449649 is a deficient number, since it is larger than the sum of its proper divisors (284275791).

495449649 is a wasteful number, since it uses less digits than its factorization.

495449649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566 (or 3560 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The square root of 495449649 is about 22258.6982773027. The cubic root of 495449649 is about 791.2854407881.

The spelling of 495449649 in words is "four hundred ninety-five million, four hundred forty-nine thousand, six hundred forty-nine".