1118040 has 128 divisors (see below), whose sum is σ = 4216320. Its totient is φ = 232320.

The previous prime is 1118027. The next prime is 1118041. The reversal of 1118040 is 408111.

1118040 = T₃₅ + T₃₆ + ... + T₁₈₈.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101635 + ... + 101645.

It is an arithmetic number, because the mean of its divisors is an integer number (32940).

2^1118040 is an apocalyptic number.

1118040 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 1118040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2108160).

1118040 is an abundant number, since it is smaller than the sum of its proper divisors (3098280).

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

1118040 is a wasteful number, since it uses less digits than its factorization.

1118040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1118040 is about 1057.3741059814. The cubic root of 1118040 is about 103.7892675670.

The spelling of 1118040 in words is "one million, one hundred eighteen thousand, forty".