1281416 has 16 divisors (see below), whose sum is σ = 2480640. Its totient is φ = 619920.

The previous prime is 1281407. The next prime is 1281431. The reversal of 1281416 is 6141821.

It is a junction number, because it is equal to n+sod(n) for n = 1281391 and 1281400.

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, 2336 + ... + 2831.

It is an arithmetic number, because the mean of its divisors is an integer number (155040).

2^1281416 is an apocalyptic number.

It is an amenable number.

1281416 is a deficient number, since it is larger than the sum of its proper divisors (1199224).

1281416 is a wasteful number, since it uses less digits than its factorization.

1281416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5204 (or 5200 counting only the distinct ones).

The product of its digits is 384, while the sum is 23.

The square root of 1281416 is about 1131.9964664256. The cubic root of 1281416 is about 108.6167275688.

The spelling of 1281416 in words is "one million, two hundred eighty-one thousand, four hundred sixteen".