1118880 has 192 divisors, whose sum is σ = 4596480. Its totient is φ = 248832.

The previous prime is 1118869. The next prime is 1118893. The reversal of 1118880 is 888111.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30222 + ... + 30258.

It is an arithmetic number, because the mean of its divisors is an integer number (23940).

2^1118880 is an apocalyptic number.

1118880 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 1118880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2298240).

1118880 is an abundant number, since it is smaller than the sum of its proper divisors (3477600).

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

1118880 is a wasteful number, since it uses less digits than its factorization.

1118880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 27.

The square root of 1118880 is about 1057.7712418099. The cubic root of 1118880 is about 103.8152538644.

The spelling of 1118880 in words is "one million, one hundred eighteen thousand, eight hundred eighty".