491036008 has 16 divisors (see below), whose sum is σ = 943149060. Its totient is φ = 239529600.

The previous prime is 491036003. The next prime is 491036009. The reversal of 491036008 is 800630194.

It can be written as a sum of positive squares in 2 ways, for example, as 370870564 + 120165444 = 19258^2 + 10962^2 .

It is a super-2 number, since 2×491036008² = 482232722305152128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (491036003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748203 + ... + 748858.

Almost surely, 2^491036008 is an apocalyptic number.

It is an amenable number.

491036008 is a deficient number, since it is larger than the sum of its proper divisors (452113052).

491036008 is a wasteful number, since it uses less digits than its factorization.

491036008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497108 (or 1497104 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 491036008 is about 22159.3323004101. The cubic root of 491036008 is about 788.9287450986.

The spelling of 491036008 in words is "four hundred ninety-one million, thirty-six thousand, eight".