491929266 has 32 divisors (see below), whose sum is σ = 1069056000. Its totient is φ = 150333840.

The previous prime is 491929259. The next prime is 491929283. The reversal of 491929266 is 662929194.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66066 + ... + 73133.

It is an arithmetic number, because the mean of its divisors is an integer number (33408000).

Almost surely, 2^491929266 is an apocalyptic number.

491929266 is an abundant number, since it is smaller than the sum of its proper divisors (577126734).

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

491929266 is a wasteful number, since it uses less digits than its factorization.

491929266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139254.

The product of its digits is 419904, while the sum is 48.

The square root of 491929266 is about 22179.4784880078. The cubic root of 491929266 is about 789.4068431125.

The spelling of 491929266 in words is "four hundred ninety-one million, nine hundred twenty-nine thousand, two hundred sixty-six".