1322768 has 20 divisors (see below), whose sum is σ = 2618880. Its totient is φ = 646944.

The previous prime is 1322767. The next prime is 1322813. The reversal of 1322768 is 8672231.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1322768.

It is not an unprimeable number, because it can be changed into a prime (1322767) 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, 128 + ... + 1631.

It is an arithmetic number, because the mean of its divisors is an integer number (130944).

2^1322768 is an apocalyptic number.

It is an amenable number.

1322768 is a deficient number, since it is larger than the sum of its proper divisors (1296112).

1322768 is a wasteful number, since it uses less digits than its factorization.

1322768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814 (or 1808 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 1322768 is about 1150.1165158365. The cubic root of 1322768 is about 109.7727540025.

Adding to 1322768 its reverse (8672231), we get a palindrome (9994999).

The spelling of 1322768 in words is "one million, three hundred twenty-two thousand, seven hundred sixty-eight".