490223881 has 9 divisors (see below), whose sum is σ = 570440781. Its totient is φ = 420059052.

The previous prime is 490223879. The next prime is 490223891. The reversal of 490223881 is 188322094.

The square root of 490223881 is 22141.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 490223881 - 2¹ = 490223879 is a prime.

It is a super-2 number, since 2×490223881² = 480638907005404322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 490223881.

It is not an unprimeable number, because it can be changed into a prime (490223821) 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 8 ways as a sum of consecutive naturals, for example, 153406 + ... + 156568.

It is an arithmetic number, because the mean of its divisors is an integer number (63382309).

Almost surely, 2^490223881 is an apocalyptic number.

490223881 is the 22141-st square number.

490223881 is the 11071-st centered octagonal number.

It is an amenable number.

490223881 is a deficient number, since it is larger than the sum of its proper divisors (80216900).

490223881 is an frugal number, since it uses more digits than its factorization.

490223881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6340 (or 3170 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The cubic root of 490223881 is about 788.4935673151.

The spelling of 490223881 in words is "four hundred ninety million, two hundred twenty-three thousand, eight hundred eighty-one".