1280248 has 8 divisors (see below), whose sum is σ = 2400480. Its totient is φ = 640120.

The previous prime is 1280231. The next prime is 1280267. The reversal of 1280248 is 8420821.

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, 80008 + ... + 80023.

It is an arithmetic number, because the mean of its divisors is an integer number (300060).

2^1280248 is an apocalyptic number.

It is an amenable number.

1280248 is a deficient number, since it is larger than the sum of its proper divisors (1120232).

1280248 is a wasteful number, since it uses less digits than its factorization.

1280248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160037 (or 160033 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 1280248 is about 1131.4804461412. The cubic root of 1280248 is about 108.5837164565.

The spelling of 1280248 in words is "one million, two hundred eighty thousand, two hundred forty-eight".