1063840 has 48 divisors (see below), whose sum is σ = 2577960. Its totient is φ = 414720.

The previous prime is 1063837. The next prime is 1063847. The reversal of 1063840 is 483601.

It can be written as a sum of positive squares in 4 ways, for example, as 659344 + 404496 = 812^2 + 636^2 .

It is a super-2 number, since 2×1063840² = 2263511091200, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1063847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9706 + ... + 9814.

2^1063840 is an apocalyptic number.

1063840 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 1063840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1288980).

1063840 is an abundant number, since it is smaller than the sum of its proper divisors (1514120).

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

1063840 is a wasteful number, since it uses less digits than its factorization.

1063840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1063840 is about 1031.4261970689. The cubic root of 1063840 is about 102.0842569216.

The spelling of 1063840 in words is "one million, sixty-three thousand, eight hundred forty".