1075840 has 48 divisors (see below), whose sum is σ = 2636190. Its totient is φ = 419840.

The previous prime is 1075807. The next prime is 1075843. The reversal of 1075840 is 485701.

It can be written as a sum of positive squares in 3 ways, for example, as 287296 + 788544 = 536^2 + 888^2 .

It is not an unprimeable number, because it can be changed into a prime (1075843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26220 + ... + 26260.

2^1075840 is an apocalyptic number.

1075840 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 1075840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1318095).

1075840 is an abundant number, since it is smaller than the sum of its proper divisors (1560350).

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

1075840 is an frugal number, since it uses more digits than its factorization.

1075840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1075840 is about 1037.2270725352. The cubic root of 1075840 is about 102.4666558207.

The spelling of 1075840 in words is "one million, seventy-five thousand, eight hundred forty".