1284160 has 28 divisors (see below), whose sum is σ = 3058668. Its totient is φ = 513536.

The previous prime is 1284131. The next prime is 1284169. The reversal of 1284160 is 614821.

It can be written as a sum of positive squares in 2 ways, for example, as 788544 + 495616 = 888^2 + 704^2 .

It is not an unprimeable number, because it can be changed into a prime (1284169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1687 + ... + 2326.

2^1284160 is an apocalyptic number.

1284160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1284160 is an abundant number, since it is smaller than the sum of its proper divisors (1774508).

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

1284160 is an equidigital number, since it uses as much as digits as its factorization.

1284160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030 (or 4020 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1284160 is about 1133.2078361889. The cubic root of 1284160 is about 108.6942022299.

Adding to 1284160 its reverse (614821), we get a palindrome (1898981).

It can be divided in two parts, 1284 and 160, that added together give a square (1444 = 38²).

The spelling of 1284160 in words is "one million, two hundred eighty-four thousand, one hundred sixty".