1284494 has 4 divisors (see below), whose sum is σ = 1926744. Its totient is φ = 642246.

The previous prime is 1284487. The next prime is 1284511. The reversal of 1284494 is 4944821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4944821 = 7 ⋅706403.

It is a self number, because there is not a number n which added to its sum of digits gives 1284494.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 321122 + ... + 321125.

It is an arithmetic number, because the mean of its divisors is an integer number (481686).

2^1284494 is an apocalyptic number.

1284494 is a deficient number, since it is larger than the sum of its proper divisors (642250).

1284494 is an equidigital number, since it uses as much as digits as its factorization.

1284494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642249.

The product of its digits is 9216, while the sum is 32.

The square root of 1284494 is about 1133.3551958676. The cubic root of 1284494 is about 108.7036249178.

The spelling of 1284494 in words is "one million, two hundred eighty-four thousand, four hundred ninety-four".