1118680 has 16 divisors (see below), whose sum is σ = 2517120. Its totient is φ = 447456.

The previous prime is 1118659. The next prime is 1118713. The reversal of 1118680 is 868111.

It is a happy number.

It is an Ulam number.

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, 13944 + ... + 14023.

It is an arithmetic number, because the mean of its divisors is an integer number (157320).

2^1118680 is an apocalyptic number.

1118680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1118680 is an abundant number, since it is smaller than the sum of its proper divisors (1398440).

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

1118680 is a wasteful number, since it uses less digits than its factorization.

1118680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27978 (or 27974 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 1118680 is about 1057.6766991855. The cubic root of 1118680 is about 103.8090678307.

The spelling of 1118680 in words is "one million, one hundred eighteen thousand, six hundred eighty".