1220968 has 16 divisors (see below), whose sum is σ = 2616480. Its totient is φ = 523248.

The previous prime is 1220953. The next prime is 1220969. The reversal of 1220968 is 8690221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1220969) 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, 10846 + ... + 10957.

It is an arithmetic number, because the mean of its divisors is an integer number (163530).

2^1220968 is an apocalyptic number.

It is an amenable number.

1220968 is an abundant number, since it is smaller than the sum of its proper divisors (1395512).

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

1220968 is a wasteful number, since it uses less digits than its factorization.

1220968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21816 (or 21812 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1220968 is about 1104.9742078438. The cubic root of 1220968 is about 106.8812261115.

The spelling of 1220968 in words is "one million, two hundred twenty thousand, nine hundred sixty-eight".