1118340 has 96 divisors (see below), whose sum is σ = 3696000. Its totient is φ = 279936.

The previous prime is 1118339. The next prime is 1118363. The reversal of 1118340 is 438111.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10206 + ... + 10314.

It is an arithmetic number, because the mean of its divisors is an integer number (38500).

2^1118340 is an apocalyptic number.

1118340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1848000).

1118340 is an abundant number, since it is smaller than the sum of its proper divisors (2577660).

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

1118340 is a wasteful number, since it uses less digits than its factorization.

1118340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1118340 is about 1057.5159573264. The cubic root of 1118340 is about 103.7985498812.

It can be divided in two parts, 1 and 118340, that added together give a triangular number (118341 = T₄₈₆).

The spelling of 1118340 in words is "one million, one hundred eighteen thousand, three hundred forty".