1224490 has 8 divisors (see below), whose sum is σ = 2204100. Its totient is φ = 489792.

The previous prime is 1224481. The next prime is 1224529. The reversal of 1224490 is 944221.

It can be written as a sum of positive squares in 2 ways, for example, as 1058841 + 165649 = 1029^2 + 407^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 61215 + ... + 61234.

2^1224490 is an apocalyptic number.

1224490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1224490 is a deficient number, since it is larger than the sum of its proper divisors (979610).

1224490 is a wasteful number, since it uses less digits than its factorization.

1224490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122456.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1224490 is about 1106.5667625589. The cubic root of 1224490 is about 106.9838971895.

The spelling of 1224490 in words is "one million, two hundred twenty-four thousand, four hundred ninety".