491045360 has 40 divisors (see below), whose sum is σ = 1229504640. Its totient is φ = 181308672.

The previous prime is 491045351. The next prime is 491045369. The reversal of 491045360 is 63540194.

It is an interprime number because it is at equal distance from previous prime (491045351) and next prime (491045369).

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×491045360² = 482251091155059200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491045369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235040 + ... + 237119.

It is an arithmetic number, because the mean of its divisors is an integer number (30737616).

Almost surely, 2^491045360 is an apocalyptic number.

491045360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

491045360 is an abundant number, since it is smaller than the sum of its proper divisors (738459280).

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

491045360 is a wasteful number, since it uses less digits than its factorization.

491045360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472185 (or 472179 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 491045360 is about 22159.5433165939. The cubic root of 491045360 is about 788.9337535668.

The spelling of 491045360 in words is "four hundred ninety-one million, forty-five thousand, three hundred sixty".