1284404 has 12 divisors (see below), whose sum is σ = 2452128. Its totient is φ = 583800.

The previous prime is 1284383. The next prime is 1284421. The reversal of 1284404 is 4044821.

It is a self number, because there is not a number n which added to its sum of digits gives 1284404.

It is a congruent number.

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, 14552 + ... + 14639.

It is an arithmetic number, because the mean of its divisors is an integer number (204344).

2^1284404 is an apocalyptic number.

It is an amenable number.

1284404 is a deficient number, since it is larger than the sum of its proper divisors (1167724).

1284404 is a wasteful number, since it uses less digits than its factorization.

1284404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29206 (or 29204 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1284404 is about 1133.3154900556. The cubic root of 1284404 is about 108.7010860310.

The spelling of 1284404 in words is "one million, two hundred eighty-four thousand, four hundred four".