1188340 has 12 divisors (see below), whose sum is σ = 2495556. Its totient is φ = 475328.

The previous prime is 1188307. The next prime is 1188353. The reversal of 1188340 is 438811.

It can be written as a sum of positive squares in 2 ways, for example, as 675684 + 512656 = 822^2 + 716^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29689 + ... + 29728.

It is an arithmetic number, because the mean of its divisors is an integer number (207963).

2^1188340 is an apocalyptic number.

1188340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1188340 is an abundant number, since it is smaller than the sum of its proper divisors (1307216).

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

1188340 is a wasteful number, since it uses less digits than its factorization.

1188340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59426 (or 59424 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1188340 is about 1090.1100861840. The cubic root of 1188340 is about 105.9205527866.

The spelling of 1188340 in words is "one million, one hundred eighty-eight thousand, three hundred forty".