1281460 has 24 divisors (see below), whose sum is σ = 2850120. Its totient is φ = 482304.

The previous prime is 1281457. The next prime is 1281463. The reversal of 1281460 is 641821.

It is an interprime number because it is at equal distance from previous prime (1281457) and next prime (1281463).

It can be written as a sum of positive squares in 4 ways, for example, as 467856 + 813604 = 684^2 + 902^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1281463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1545 + ... + 2224.

It is an arithmetic number, because the mean of its divisors is an integer number (118755).

2^1281460 is an apocalyptic number.

1281460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1281460 is an abundant number, since it is smaller than the sum of its proper divisors (1568660).

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

1281460 is a wasteful number, since it uses less digits than its factorization.

1281460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3795 (or 3793 counting only the distinct ones).

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

The square root of 1281460 is about 1132.0159009484. The cubic root of 1281460 is about 108.6179707460.

The spelling of 1281460 in words is "one million, two hundred eighty-one thousand, four hundred sixty".