1320798 has 32 divisors (see below), whose sum is σ = 2923776. Its totient is φ = 395648.

The previous prime is 1320791. The next prime is 1320799. The reversal of 1320798 is 8970231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2065 + ... + 2627.

It is an arithmetic number, because the mean of its divisors is an integer number (91368).

2^1320798 is an apocalyptic number.

1320798 is an abundant number, since it is smaller than the sum of its proper divisors (1602978).

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

1320798 is a wasteful number, since it uses less digits than its factorization.

1320798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1320798 is about 1149.2597617597. The cubic root of 1320798 is about 109.7182320280.

The spelling of 1320798 in words is "one million, three hundred twenty thousand, seven hundred ninety-eight".