494584191 has 8 divisors (see below), whose sum is σ = 732717360. Its totient is φ = 329722776.

The previous prime is 494584171. The next prime is 494584201. The reversal of 494584191 is 191485494.

It is a happy number.

494584191 is a `hidden beast` number, since 4 + 9 + 458 + 4 + 191 = 666.

It is not a de Polignac number, because 494584191 - 2¹³ = 494575999 is a prime.

It is a super-2 number, since 2×494584191² = 489227043974248962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494584141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9158940 + ... + 9158993.

It is an arithmetic number, because the mean of its divisors is an integer number (91589670).

Almost surely, 2^494584191 is an apocalyptic number.

494584191 is a deficient number, since it is larger than the sum of its proper divisors (238133169).

494584191 is a wasteful number, since it uses less digits than its factorization.

494584191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18317942 (or 18317936 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 494584191 is about 22239.2488856976. The cubic root of 494584191 is about 790.8244296256.

The spelling of 494584191 in words is "four hundred ninety-four million, five hundred eighty-four thousand, one hundred ninety-one".