1220774 has 8 divisors (see below), whose sum is σ = 1857168. Its totient is φ = 601720.

The previous prime is 1220773. The next prime is 1220777. The reversal of 1220774 is 4770221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220773) 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, 4157 + ... + 4440.

It is an arithmetic number, because the mean of its divisors is an integer number (232146).

2^1220774 is an apocalyptic number.

1220774 is a deficient number, since it is larger than the sum of its proper divisors (636394).

1220774 is an equidigital number, since it uses as much as digits as its factorization.

1220774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8670.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 1220774 is about 1104.8864195020. The cubic root of 1220774 is about 106.8755650142.

Adding to 1220774 its reverse (4770221), we get a palindrome (5990995).

The spelling of 1220774 in words is "one million, two hundred twenty thousand, seven hundred seventy-four".