1822318 has 4 divisors (see below), whose sum is σ = 2733480. Its totient is φ = 911158.

The previous prime is 1822307. The next prime is 1822319. The reversal of 1822318 is 8132281.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1822292 and 1822301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455578 + ... + 455581.

It is an arithmetic number, because the mean of its divisors is an integer number (683370).

2^1822318 is an apocalyptic number.

1822318 is a deficient number, since it is larger than the sum of its proper divisors (911162).

1822318 is an equidigital number, since it uses as much as digits as its factorization.

1822318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911161.

The product of its digits is 768, while the sum is 25.

The square root of 1822318 is about 1349.9325909096. The cubic root of 1822318 is about 122.1447265702.

Adding to 1822318 its reverse (8132281), we get a palindrome (9954599).

It can be divided in two parts, 182 and 2318, that added together give a square (2500 = 50²).

The spelling of 1822318 in words is "one million, eight hundred twenty-two thousand, three hundred eighteen".