491212360 has 64 divisors (see below), whose sum is σ = 1153958400. Its totient is φ = 187968000.

The previous prime is 491212327. The next prime is 491212361. The reversal of 491212360 is 63212194.

It is not an unprimeable number, because it can be changed into a prime (491212361) 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, 108135 + ... + 112585.

It is an arithmetic number, because the mean of its divisors is an integer number (18030600).

Almost surely, 2^491212360 is an apocalyptic number.

491212360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491212360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576979200).

491212360 is an abundant number, since it is smaller than the sum of its proper divisors (662746040).

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

491212360 is a wasteful number, since it uses less digits than its factorization.

491212360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4582 (or 4578 counting only the distinct ones).

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

The square root of 491212360 is about 22163.3111244687. The cubic root of 491212360 is about 789.0231797954.

The spelling of 491212360 in words is "four hundred ninety-one million, two hundred twelve thousand, three hundred sixty".