1132240 has 20 divisors (see below), whose sum is σ = 2632644. Its totient is φ = 452864.

The previous prime is 1132223. The next prime is 1132249. The reversal of 1132240 is 422311.

It can be written as a sum of positive squares in 2 ways, for example, as 419904 + 712336 = 648^2 + 844^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 1132240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6997 + ... + 7156.

2^1132240 is an apocalyptic number.

1132240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1132240 is an abundant number, since it is smaller than the sum of its proper divisors (1500404).

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

1132240 is a wasteful number, since it uses less digits than its factorization.

1132240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14166 (or 14160 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1132240 is about 1064.0676670212. The cubic root of 1132240 is about 104.2268224980.

Adding to 1132240 its reverse (422311), we get a palindrome (1554551).

The spelling of 1132240 in words is "one million, one hundred thirty-two thousand, two hundred forty".