491027492 has 24 divisors (see below), whose sum is σ = 891349536. Its totient is φ = 236513088.

The previous prime is 491027447. The next prime is 491027497. The reversal of 491027492 is 294720194.

It is a super-2 number, since 2×491027492² = 482215995799620128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (491027497) 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 7 ways as a sum of consecutive naturals, for example, 6998 + ... + 32109.

It is an arithmetic number, because the mean of its divisors is an integer number (37139564).

Almost surely, 2^491027492 is an apocalyptic number.

It is an amenable number.

491027492 is a deficient number, since it is larger than the sum of its proper divisors (400322044).

491027492 is a wasteful number, since it uses less digits than its factorization.

491027492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39227 (or 39225 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 491027492 is about 22159.1401457728. The cubic root of 491027492 is about 788.9241842952.

The spelling of 491027492 in words is "four hundred ninety-one million, twenty-seven thousand, four hundred ninety-two".