1284056 has 8 divisors (see below), whose sum is σ = 2407620. Its totient is φ = 642024.

The previous prime is 1284053. The next prime is 1284083. The reversal of 1284056 is 6504821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1284056² = 3297599622272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80246 + ... + 80261.

2^1284056 is an apocalyptic number.

It is an amenable number.

1284056 is a deficient number, since it is larger than the sum of its proper divisors (1123564).

1284056 is a wasteful number, since it uses less digits than its factorization.

1284056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160513 (or 160509 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1284056 is about 1133.1619478256. The cubic root of 1284056 is about 108.6912678858.

Adding to 1284056 its reverse (6504821), we get a palindrome (7788877).

The spelling of 1284056 in words is "one million, two hundred eighty-four thousand, fifty-six".