490641822 has 48 divisors (see below), whose sum is σ = 1163506032. Its totient is φ = 148191360.

The previous prime is 490641797. The next prime is 490641859. The reversal of 490641822 is 228146094.

490641822 is a `hidden beast` number, since 4 + 9 + 0 + 641 + 8 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58858 + ... + 66674.

It is an arithmetic number, because the mean of its divisors is an integer number (24239709).

Almost surely, 2^490641822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 490641822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (581753016).

490641822 is an abundant number, since it is smaller than the sum of its proper divisors (672864210).

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

490641822 is a wasteful number, since it uses less digits than its factorization.

490641822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8153 (or 8150 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 490641822 is about 22150.4361582340. The cubic root of 490641822 is about 788.7175807344.

The spelling of 490641822 in words is "four hundred ninety million, six hundred forty-one thousand, eight hundred twenty-two".