1130988 has 18 divisors (see below), whose sum is σ = 2647596. Its totient is φ = 375768.

The previous prime is 1130981. The next prime is 1131023. The reversal of 1130988 is 8890311.

It is a super-2 number, since 2×1130988² = 2558267712288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1130981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3531 + ... + 3837.

2^1130988 is an apocalyptic number.

It is an amenable number.

1130988 is an abundant number, since it is smaller than the sum of its proper divisors (1516608).

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

1130988 is an equidigital number, since it uses as much as digits as its factorization.

1130988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1130988 is about 1063.4791958473. The cubic root of 1130988 is about 104.1883912733.

Multiplying 1130988 by its product of nonzero digits (1728), we get a square (1954347264 = 44208²).

The spelling of 1130988 in words is "one million, one hundred thirty thousand, nine hundred eighty-eight".