1284488 has 16 divisors (see below), whose sum is σ = 2420880. Its totient is φ = 638928.

The previous prime is 1284487. The next prime is 1284511. The reversal of 1284488 is 8844821.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1284487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2195 + ... + 2717.

It is an arithmetic number, because the mean of its divisors is an integer number (151305).

2^1284488 is an apocalyptic number.

It is an amenable number.

1284488 is a deficient number, since it is larger than the sum of its proper divisors (1136392).

1284488 is a wasteful number, since it uses less digits than its factorization.

1284488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 832 counting only the distinct ones).

The product of its digits is 16384, while the sum is 35.

The square root of 1284488 is about 1133.3525488567. The cubic root of 1284488 is about 108.7034556624.

The spelling of 1284488 in words is "one million, two hundred eighty-four thousand, four hundred eighty-eight".