491085200 has 30 divisors (see below), whose sum is σ = 1179833154. Its totient is φ = 196433920.

The previous prime is 491085169. The next prime is 491085211. The reversal of 491085200 is 2580194.

It can be written as a sum of positive squares in 3 ways, for example, as 173817856 + 317267344 = 13184^2 + 17812^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 613457 + ... + 614256.

Almost surely, 2^491085200 is an apocalyptic number.

491085200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

491085200 is an abundant number, since it is smaller than the sum of its proper divisors (688747954).

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

491085200 is a wasteful number, since it uses less digits than its factorization.

491085200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227731 (or 1227720 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 491085200 is about 22160.4422338544. The cubic root of 491085200 is about 788.9550891862.

The spelling of 491085200 in words is "four hundred ninety-one million, eighty-five thousand, two hundred".