1228670 has 8 divisors (see below), whose sum is σ = 2211624. Its totient is φ = 491464.

The previous prime is 1228657. The next prime is 1228679. The reversal of 1228670 is 768221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61424 + ... + 61443.

It is an arithmetic number, because the mean of its divisors is an integer number (276453).

2^1228670 is an apocalyptic number.

1228670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1228670 is a deficient number, since it is larger than the sum of its proper divisors (982954).

1228670 is a wasteful number, since it uses less digits than its factorization.

1228670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122874.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1228670 is about 1108.4538781564. The cubic root of 1228670 is about 107.1054946975.

It can be divided in two parts, 12 and 28670, that added together give a palindrome (28682).

The spelling of 1228670 in words is "one million, two hundred twenty-eight thousand, six hundred seventy".