1206628 has 6 divisors (see below), whose sum is σ = 2111606. Its totient is φ = 603312.

The previous prime is 1206619. The next prime is 1206637. The reversal of 1206628 is 8266021.

It is an interprime number because it is at equal distance from previous prime (1206619) and next prime (1206637).

It can be written as a sum of positive squares in only one way, i.e., 1205604 + 1024 = 1098^2 + 32^2 .

It is a super-2 number, since 2×1206628² = 2911902260768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150825 + ... + 150832.

2^1206628 is an apocalyptic number.

It is an amenable number.

1206628 is a deficient number, since it is larger than the sum of its proper divisors (904978).

1206628 is a wasteful number, since it uses less digits than its factorization.

1206628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301661 (or 301659 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1206628 is about 1098.4662033945. The cubic root of 1206628 is about 106.4611450611.

The spelling of 1206628 in words is "one million, two hundred six thousand, six hundred twenty-eight".