1206280 has 32 divisors (see below), whose sum is σ = 2770200. Its totient is φ = 472576.

The previous prime is 1206277. The next prime is 1206307. The reversal of 1206280 is 826021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 894916 + 311364 = 946^2 + 558^2 .

It is a super-2 number, since 2×1206280² = 2910222876800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1836 + ... + 2404.

2^1206280 is an apocalyptic number.

1206280 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 1206280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385100).

1206280 is an abundant number, since it is smaller than the sum of its proper divisors (1563920).

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

1206280 is a wasteful number, since it uses less digits than its factorization.

1206280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1206280 is about 1098.3077892831. The cubic root of 1206280 is about 106.4509093627.

It can be divided in two parts, 120 and 6280, that added together give a square (6400 = 80²).

The spelling of 1206280 in words is "one million, two hundred six thousand, two hundred eighty".