1218852 has 18 divisors (see below), whose sum is σ = 3081078. Its totient is φ = 406272.

The previous prime is 1218829. The next prime is 1218853. The reversal of 1218852 is 2588121.

It can be written as a sum of positive squares in only one way, i.e., 1218816 + 36 = 1104^2 + 6^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (1218853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16893 + ... + 16964.

It is an arithmetic number, because the mean of its divisors is an integer number (171171).

2^1218852 is an apocalyptic number.

1218852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1218852 is an abundant number, since it is smaller than the sum of its proper divisors (1862226).

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

1218852 is a wasteful number, since it uses less digits than its factorization.

1218852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33867 (or 33862 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 1218852 is about 1104.0163042274. The cubic root of 1218852 is about 106.8194468649.

The spelling of 1218852 in words is "one million, two hundred eighteen thousand, eight hundred fifty-two".