1130240 has 36 divisors (see below), whose sum is σ = 2710344. Its totient is φ = 451584.

The previous prime is 1130237. The next prime is 1130251. The reversal of 1130240 is 420311.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839 + ... + 1721.

2^1130240 is an apocalyptic number.

1130240 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 1130240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1355172).

1130240 is an abundant number, since it is smaller than the sum of its proper divisors (1580104).

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

1130240 is an frugal number, since it uses more digits than its factorization.

1130240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1130240 is about 1063.1274617843. The cubic root of 1130240 is about 104.1654172295.

Adding to 1130240 its reverse (420311), we get a palindrome (1550551).

The spelling of 1130240 in words is "one million, one hundred thirty thousand, two hundred forty".