1220796 has 18 divisors (see below), whose sum is σ = 3085992. Its totient is φ = 406920.

The previous prime is 1220783. The next prime is 1220797. The reversal of 1220796 is 6970221.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220797) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16920 + ... + 16991.

It is an arithmetic number, because the mean of its divisors is an integer number (171444).

2^1220796 is an apocalyptic number.

It is an amenable number.

1220796 is an abundant number, since it is smaller than the sum of its proper divisors (1865196).

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

1220796 is a wasteful number, since it uses less digits than its factorization.

1220796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33921 (or 33916 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1220796 is about 1104.8963752316. The cubic root of 1220796 is about 106.8762070244.

It can be divided in two parts, 1220 and 796, that added together give a triangular number (2016 = T₆₃).

The spelling of 1220796 in words is "one million, two hundred twenty thousand, seven hundred ninety-six".