1220802 has 32 divisors (see below), whose sum is σ = 2721600. Its totient is φ = 361920.

The previous prime is 1220801. The next prime is 1220803. The reversal of 1220802 is 2080221.

It is an interprime number because it is at equal distance from previous prime (1220801) and next prime (1220803).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3324 + ... + 3672.

It is an arithmetic number, because the mean of its divisors is an integer number (85050).

2^1220802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360800).

1220802 is an abundant number, since it is smaller than the sum of its proper divisors (1500798).

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

1220802 is a wasteful number, since it uses less digits than its factorization.

1220802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1220802 is about 1104.8990904150. The cubic root of 1220802 is about 106.8763821168.

The spelling of 1220802 in words is "one million, two hundred twenty thousand, eight hundred two".