1280200 has 48 divisors (see below), whose sum is σ = 3074580. Its totient is φ = 495360.

The previous prime is 1280183. The next prime is 1280221. The reversal of 1280200 is 20821.

It can be written as a sum of positive squares in 6 ways, for example, as 1028196 + 252004 = 1014^2 + 502^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7314 + ... + 7486.

2^1280200 is an apocalyptic number.

1280200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1280200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1537290).

1280200 is an abundant number, since it is smaller than the sum of its proper divisors (1794380).

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

1280200 is a wasteful number, since it uses less digits than its factorization.

1280200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1280200 is about 1131.4592347937. The cubic root of 1280200 is about 108.5823594060.

The spelling of 1280200 in words is "one million, two hundred eighty thousand, two hundred".