491787410 has 32 divisors (see below), whose sum is σ = 916890624. Its totient is φ = 189720000.

The previous prime is 491787409. The next prime is 491787419. The reversal of 491787410 is 14787194.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (491787419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93860 + ... + 98960.

It is an arithmetic number, because the mean of its divisors is an integer number (28652832).

Almost surely, 2^491787410 is an apocalyptic number.

491787410 is a deficient number, since it is larger than the sum of its proper divisors (425103214).

491787410 is a wasteful number, since it uses less digits than its factorization.

491787410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5450.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 491787410 is about 22176.2803463520. The cubic root of 491787410 is about 789.3309562790.

The spelling of 491787410 in words is "four hundred ninety-one million, seven hundred eighty-seven thousand, four hundred ten".