1132290 has 48 divisors (see below), whose sum is σ = 3077568. Its totient is φ = 288288.

The previous prime is 1132259. The next prime is 1132291. The reversal of 1132290 is 922311.

It is a happy number.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1132291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1797 + ... + 2343.

It is an arithmetic number, because the mean of its divisors is an integer number (64116).

2^1132290 is an apocalyptic number.

1132290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1132290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1538784).

1132290 is an abundant number, since it is smaller than the sum of its proper divisors (1945278).

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

1132290 is a wasteful number, since it uses less digits than its factorization.

1132290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1132290 is about 1064.0911615083. The cubic root of 1132290 is about 104.2283567029.

The spelling of 1132290 in words is "one million, one hundred thirty-two thousand, two hundred ninety".