1280008 has 8 divisors (see below), whose sum is σ = 2400030. Its totient is φ = 640000.

The previous prime is 1279997. The next prime is 1280023. The reversal of 1280008 is 8000821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 643204 + 636804 = 802^2 + 798^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79993 + ... + 80008.

2^1280008 is an apocalyptic number.

It is an amenable number.

1280008 is a deficient number, since it is larger than the sum of its proper divisors (1120022).

1280008 is a wasteful number, since it uses less digits than its factorization.

1280008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160007 (or 160003 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1280008 is about 1131.3743854269. The cubic root of 1280008 is about 108.5769308648.

Adding to 1280008 its reverse (8000821), we get a palindrome (9280829).

The spelling of 1280008 in words is "one million, two hundred eighty thousand, eight".