1075780 has 36 divisors (see below), whose sum is σ = 2400300. Its totient is φ = 404928.

The previous prime is 1075771. The next prime is 1075787. The reversal of 1075780 is 875701.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 244036 + 831744 = 494^2 + 912^2 .

It is not an unprimeable number, because it can be changed into a prime (1075787) 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 11 ways as a sum of consecutive naturals, for example, 7146 + ... + 7294.

It is an arithmetic number, because the mean of its divisors is an integer number (66675).

2^1075780 is an apocalyptic number.

1075780 is a gapful number since it is divisible by the number (10) 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 1075780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1200150).

1075780 is an abundant number, since it is smaller than the sum of its proper divisors (1324520).

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

1075780 is a wasteful number, since it uses less digits than its factorization.

1075780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 1075780 is about 1037.1981488607. The cubic root of 1075780 is about 102.4647509173.

The spelling of 1075780 in words is "one million, seventy-five thousand, seven hundred eighty".