1823118 has 32 divisors (see below), whose sum is σ = 4154112. Its totient is φ = 528000.

The previous prime is 1823117. The next prime is 1823119. The reversal of 1823118 is 8113281.

It is an interprime number because it is at equal distance from previous prime (1823117) and next prime (1823119).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1823117) 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, 918 + ... + 2118.

It is an arithmetic number, because the mean of its divisors is an integer number (129816).

2^1823118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1823118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2077056).

1823118 is an abundant number, since it is smaller than the sum of its proper divisors (2330994).

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

1823118 is a wasteful number, since it uses less digits than its factorization.

1823118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240.

The product of its digits is 384, while the sum is 24.

The square root of 1823118 is about 1350.2288694884. The cubic root of 1823118 is about 122.1625978539.

Adding to 1823118 its reverse (8113281), we get a palindrome (9936399).

The spelling of 1823118 in words is "one million, eight hundred twenty-three thousand, one hundred eighteen".