491386246 has 16 divisors (see below), whose sum is σ = 835556400. Its totient is φ = 214856928.

The previous prime is 491386229. The next prime is 491386249. The reversal of 491386246 is 642683194.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491386249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496861 + ... + 497848.

It is an arithmetic number, because the mean of its divisors is an integer number (52222275).

Almost surely, 2^491386246 is an apocalyptic number.

491386246 is a deficient number, since it is larger than the sum of its proper divisors (344170154).

491386246 is a wasteful number, since it uses less digits than its factorization.

491386246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994743.

The product of its digits is 248832, while the sum is 43.

The square root of 491386246 is about 22167.2336117974. The cubic root of 491386246 is about 789.1162718466.

The spelling of 491386246 in words is "four hundred ninety-one million, three hundred eighty-six thousand, two hundred forty-six".