1000490 has 8 divisors (see below), whose sum is σ = 1800900. Its totient is φ = 400192.

The previous prime is 1000457. The next prime is 1000507. The reversal of 1000490 is 940001.

It can be written as a sum of positive squares in 2 ways, for example, as 829921 + 170569 = 911^2 + 413^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50015 + ... + 50034.

2^1000490 is an apocalyptic number.

1000490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000490 is a deficient number, since it is larger than the sum of its proper divisors (800410).

1000490 is a wasteful number, since it uses less digits than its factorization.

1000490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100056.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1000490 is about 1000.2449699949. The cubic root of 1000490 is about 100.0163306663.

Adding to 1000490 its reverse (940001), we get a palindrome (1940491).

It can be divided in two parts, 1000 and 490, that multiplied together give a square (490000 = 700²).

The spelling of 1000490 in words is "one million, four hundred ninety", and thus it is an aban number.