492573636 has 81 divisors (see below), whose sum is σ = 1302446509. Its totient is φ = 162992736.

The previous prime is 492573607. The next prime is 492573649. The reversal of 492573636 is 636375294.

The square root of 492573636 is 22194.

It is a perfect power (a square), and thus also a powerful number.

492573636 is a `hidden beast` number, since 4 + 9 + 2 + 5 + 7 + 3 + 636 = 666.

It can be written as a sum of positive squares in only one way, i.e., 289340100 + 203233536 = 17010^2 + 14256^2 .

It is a tau number, because it is divible by the number of its divisors (81).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 492573591 and 492573600.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3595360 + ... + 3595496.

Almost surely, 2^492573636 is an apocalyptic number.

492573636 is the 22194-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 492573636

492573636 is an abundant number, since it is smaller than the sum of its proper divisors (809872873).

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

492573636 is an frugal number, since it uses more digits than its factorization.

492573636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 142 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

The cubic root of 492573636 is about 789.7513697105.

The spelling of 492573636 in words is "four hundred ninety-two million, five hundred seventy-three thousand, six hundred thirty-six".