490122 has 24 divisors (see below), whose sum is σ = 1079364. Its totient is φ = 160704.

The previous prime is 490121. The next prime is 490151. The reversal of 490122 is 221094.

It can be written as a sum of positive squares in 2 ways, for example, as 488601 + 1521 = 699^2 + 39^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 490095 and 490104.

It is not an unprimeable number, because it can be changed into a prime (490121) 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 11 ways as a sum of consecutive naturals, for example, 1128 + ... + 1500.

2⁴⁹⁰¹²² is an apocalyptic number.

490122 is an abundant number, since it is smaller than the sum of its proper divisors (589242).

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

490122 is a wasteful number, since it uses less digits than its factorization.

490122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 490122 is about 700.0871374336. The cubic root of 490122 is about 78.8438940520.

The spelling of 490122 in words is "four hundred ninety thousand, one hundred twenty-two".