1270280 has 32 divisors (see below), whose sum is σ = 3119040. Its totient is φ = 461760.

The previous prime is 1270279. The next prime is 1270301. The reversal of 1270280 is 820721.

It is a super-2 number, since 2×1270280² = 3227222556800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1004 + ... + 1883.

It is an arithmetic number, because the mean of its divisors is an integer number (97470).

2^1270280 is an apocalyptic number.

1270280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1270280 is an abundant number, since it is smaller than the sum of its proper divisors (1848760).

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

1270280 is a wasteful number, since it uses less digits than its factorization.

1270280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909 (or 2905 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1270280 is about 1127.0669900232. The cubic root of 1270280 is about 108.3011712547.

The spelling of 1270280 in words is "one million, two hundred seventy thousand, two hundred eighty".