492640101 has 6 divisors (see below), whose sum is σ = 711591270. Its totient is φ = 328426728.

The previous prime is 492640097. The next prime is 492640153. The reversal of 492640101 is 101046294.

492640101 is a `hidden beast` number, since 4 + 9 + 2 + 640 + 10 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 474107076 + 18533025 = 21774^2 + 4305^2 .

It is not a de Polignac number, because 492640101 - 2² = 492640097 is a prime.

It is a super-2 number, since 2×492640101² = 485388538226580402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492640171) 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 5 ways as a sum of consecutive naturals, for example, 27368886 + ... + 27368903.

It is an arithmetic number, because the mean of its divisors is an integer number (118598545).

Almost surely, 2^492640101 is an apocalyptic number.

It is an amenable number.

492640101 is a deficient number, since it is larger than the sum of its proper divisors (218951169).

492640101 is a wasteful number, since it uses less digits than its factorization.

492640101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54737795 (or 54737792 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 492640101 is about 22195.4973136445. The cubic root of 492640101 is about 789.7868895869.

Adding to 492640101 its reverse (101046294), we get a palindrome (593686395).

The spelling of 492640101 in words is "four hundred ninety-two million, six hundred forty thousand, one hundred one".