1083240 has 128 divisors (see below), whose sum is σ = 3888000. Its totient is φ = 267264.

The previous prime is 1083211. The next prime is 1083241. The reversal of 1083240 is 423801.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1083241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18331 + ... + 18389.

It is an arithmetic number, because the mean of its divisors is an integer number (30375).

2^1083240 is an apocalyptic number.

1083240 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 1083240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1944000).

1083240 is an abundant number, since it is smaller than the sum of its proper divisors (2804760).

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

1083240 is a wasteful number, since it uses less digits than its factorization.

1083240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 86 counting only the distinct ones).

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

The square root of 1083240 is about 1040.7881628843. The cubic root of 1083240 is about 102.7010529295.

The spelling of 1083240 in words is "one million, eighty-three thousand, two hundred forty".