492749568 has 162 divisors, whose sum is σ = 1490078044. Its totient is φ = 162404352.

The previous prime is 492749563. The next prime is 492749597. The reversal of 492749568 is 865947294.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

492749568 is a `hidden beast` number, since 4 + 9 + 2 + 74 + 9 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (162).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (492749561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5536468 + ... + 5536556.

Almost surely, 2^492749568 is an apocalyptic number.

492749568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 492749568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (745039022).

492749568 is an abundant number, since it is smaller than the sum of its proper divisors (997328476).

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

492749568 is an frugal number, since it uses more digits than its factorization.

492749568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 94 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 492749568 is about 22197.9631498027. The cubic root of 492749568 is about 789.8453834032.

The spelling of 492749568 in words is "four hundred ninety-two million, seven hundred forty-nine thousand, five hundred sixty-eight".