492985845 has 80 divisors (see below), whose sum is σ = 987940800. Its totient is φ = 233107200.

The previous prime is 492985813. The next prime is 492985847. The reversal of 492985845 is 548589294.

It is a happy number.

It is not a de Polignac number, because 492985845 - 2⁵ = 492985813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 492985791 and 492985800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492985847) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 181306 + ... + 184004.

It is an arithmetic number, because the mean of its divisors is an integer number (12349260).

Almost surely, 2^492985845 is an apocalyptic number.

492985845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

492985845 is an abundant number, since it is smaller than the sum of its proper divisors (494954955).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

492985845 is a wasteful number, since it uses less digits than its factorization.

492985845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768 (or 2759 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The square root of 492985845 is about 22203.2845543176. The cubic root of 492985845 is about 789.9716087644.

The spelling of 492985845 in words is "four hundred ninety-two million, nine hundred eighty-five thousand, eight hundred forty-five".