1133240 has 32 divisors (see below), whose sum is σ = 2615760. Its totient is φ = 441600.

The previous prime is 1133239. The next prime is 1133257. The reversal of 1133240 is 423311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1295 + ... + 1985.

2^1133240 is an apocalyptic number.

1133240 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 1133240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1307880).

1133240 is an abundant number, since it is smaller than the sum of its proper divisors (1482520).

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

1133240 is a wasteful number, since it uses less digits than its factorization.

1133240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743 (or 739 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1133240 is about 1064.5374582418. The cubic root of 1133240 is about 104.2574980182.

Adding to 1133240 its reverse (423311), we get a palindrome (1556551).

The spelling of 1133240 in words is "one million, one hundred thirty-three thousand, two hundred forty".