491520006 has 24 divisors (see below), whose sum is σ = 1121011320. Its totient is φ = 155216736.

The previous prime is 491519999. The next prime is 491520011. The reversal of 491520006 is 600025194.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 718255 + ... + 718938.

It is an arithmetic number, because the mean of its divisors is an integer number (46708805).

Almost surely, 2^491520006 is an apocalyptic number.

491520006 is an abundant number, since it is smaller than the sum of its proper divisors (629491314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491520006 is a wasteful number, since it uses less digits than its factorization.

491520006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437220 (or 1437217 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 491520006 is about 22170.2504721981. The cubic root of 491520006 is about 789.1878669970.

The spelling of 491520006 in words is "four hundred ninety-one million, five hundred twenty thousand, six".