1286544 has 60 divisors (see below), whose sum is σ = 3873264. Its totient is φ = 366912.

The previous prime is 1286533. The next prime is 1286557. The reversal of 1286544 is 4456821.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2079 + ... + 2625.

2^1286544 is an apocalyptic number.

1286544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1286544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1936632).

1286544 is an abundant number, since it is smaller than the sum of its proper divisors (2586720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1286544 is a wasteful number, since it uses less digits than its factorization.

1286544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 559 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 1286544 is about 1134.2592296296. The cubic root of 1286544 is about 108.7614230305.

It can be divided in two parts, 1286 and 544, that added together give a triangular number (1830 = T₆₀).

The spelling of 1286544 in words is "one million, two hundred eighty-six thousand, five hundred forty-four".