1226560 has 28 divisors (see below), whose sum is σ = 2921508. Its totient is φ = 490496.

The previous prime is 1226557. The next prime is 1226581. The reversal of 1226560 is 656221.

It can be written as a sum of positive squares in 2 ways, for example, as 350464 + 876096 = 592^2 + 936^2 .

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, 1597 + ... + 2236.

2^1226560 is an apocalyptic number.

1226560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1226560 is an abundant number, since it is smaller than the sum of its proper divisors (1694948).

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

1226560 is an equidigital number, since it uses as much as digits as its factorization.

1226560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850 (or 3840 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1226560 is about 1107.5016930010. The cubic root of 1226560 is about 107.0441486666.

The spelling of 1226560 in words is "one million, two hundred twenty-six thousand, five hundred sixty".