1320048 has 60 divisors (see below), whose sum is σ = 3772080. Its totient is φ = 430848.

The previous prime is 1320037. The next prime is 1320061. The reversal of 1320048 is 8400231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1320048.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 12765 + ... + 12867.

It is an arithmetic number, because the mean of its divisors is an integer number (62868).

2^1320048 is an apocalyptic number.

1320048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1886040).

1320048 is an abundant number, since it is smaller than the sum of its proper divisors (2452032).

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

1320048 is a wasteful number, since it uses less digits than its factorization.

1320048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1320048 is about 1148.9334184364. The cubic root of 1320048 is about 109.6974606826.

Adding to 1320048 its reverse (8400231), we get a palindrome (9720279).

The spelling of 1320048 in words is "one million, three hundred twenty thousand, forty-eight".