1132440 has 32 divisors (see below), whose sum is σ = 3397680. Its totient is φ = 301952.

The previous prime is 1132429. The next prime is 1132447. The reversal of 1132440 is 442311.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132447) 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, 4599 + ... + 4838.

2^1132440 is an apocalyptic number.

1132440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1132440 is an abundant number, since it is smaller than the sum of its proper divisors (2265240).

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

1132440 is a wasteful number, since it uses less digits than its factorization.

1132440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9451 (or 9447 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1132440 is about 1064.1616418571. The cubic root of 1132440 is about 104.2329590466.

Adding to 1132440 its reverse (442311), we get a palindrome (1574751).

The spelling of 1132440 in words is "one million, one hundred thirty-two thousand, four hundred forty".