491302612 has 12 divisors (see below), whose sum is σ = 865256980. Its totient is φ = 244086336.

The previous prime is 491302597. The next prime is 491302621. The reversal of 491302612 is 216203194.

It can be written as a sum of positive squares in 2 ways, for example, as 229704336 + 261598276 = 15156^2 + 16174^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390537 + ... + 391792.

Almost surely, 2^491302612 is an apocalyptic number.

It is an amenable number.

491302612 is a deficient number, since it is larger than the sum of its proper divisors (373954368).

491302612 is a wasteful number, since it uses less digits than its factorization.

491302612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782490 (or 782488 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 491302612 is about 22165.3470985681. The cubic root of 491302612 is about 789.0715000773.

The spelling of 491302612 in words is "four hundred ninety-one million, three hundred two thousand, six hundred twelve".