491176770 has 128 divisors (see below), whose sum is σ = 1418342400. Its totient is φ = 106482432.

The previous prime is 491176757. The next prime is 491176783. The reversal of 491176770 is 77671194.

It is an interprime number because it is at equal distance from previous prime (491176757) and next prime (491176783).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 358627 + ... + 359993.

It is an arithmetic number, because the mean of its divisors is an integer number (11080800).

Almost surely, 2^491176770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491176770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709171200).

491176770 is an abundant number, since it is smaller than the sum of its proper divisors (927165630).

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

491176770 is a wasteful number, since it uses less digits than its factorization.

491176770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472.

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 491176770 is about 22162.5082064283. The cubic root of 491176770 is about 789.0041235341.

The spelling of 491176770 in words is "four hundred ninety-one million, one hundred seventy-six thousand, seven hundred seventy".