1138180 has 12 divisors (see below), whose sum is σ = 2390220. Its totient is φ = 455264.

The previous prime is 1138171. The next prime is 1138183. The reversal of 1138180 is 818311.

It can be written as a sum of positive squares in 2 ways, for example, as 331776 + 806404 = 576^2 + 898^2 .

It is not an unprimeable number, because it can be changed into a prime (1138183) 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, 28435 + ... + 28474.

It is an arithmetic number, because the mean of its divisors is an integer number (199185).

2^1138180 is an apocalyptic number.

1138180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1138180 is an abundant number, since it is smaller than the sum of its proper divisors (1252040).

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

1138180 is a wasteful number, since it uses less digits than its factorization.

1138180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56918 (or 56916 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 1138180 is about 1066.8551916732. The cubic root of 1138180 is about 104.4087709096.

The spelling of 1138180 in words is "one million, one hundred thirty-eight thousand, one hundred eighty".