491212592 has 80 divisors (see below), whose sum is σ = 1066702560. Its totient is φ = 217645056.

The previous prime is 491212571. The next prime is 491212597. The reversal of 491212592 is 295212194.

It is not an unprimeable number, because it can be changed into a prime (491212597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 638384 + ... + 639152.

It is an arithmetic number, because the mean of its divisors is an integer number (13333782).

Almost surely, 2^491212592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491212592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (533351280).

491212592 is an abundant number, since it is smaller than the sum of its proper divisors (575489968).

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

491212592 is a wasteful number, since it uses less digits than its factorization.

491212592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910 (or 904 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 491212592 is about 22163.3163583431. The cubic root of 491212592 is about 789.0233040141.

The spelling of 491212592 in words is "four hundred ninety-one million, two hundred twelve thousand, five hundred ninety-two".