1118730 has 32 divisors (see below), whose sum is σ = 2721600. Its totient is φ = 294272.

The previous prime is 1118723. The next prime is 1118737. The reversal of 1118730 is 378111.

It is an interprime number because it is at equal distance from previous prime (1118723) and next prime (1118737).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1118697 and 1118706.

It is not an unprimeable number, because it can be changed into a prime (1118737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2461 + ... + 2879.

It is an arithmetic number, because the mean of its divisors is an integer number (85050).

2^1118730 is an apocalyptic number.

1118730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1118730 is an abundant number, since it is smaller than the sum of its proper divisors (1602870).

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

1118730 is a wasteful number, since it uses less digits than its factorization.

1118730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 1118730 is about 1057.7003356339. The cubic root of 1118730 is about 103.8106144083.

The spelling of 1118730 in words is "one million, one hundred eighteen thousand, seven hundred thirty".