2013822 has 40 divisors (see below), whose sum is σ = 4669632. Its totient is φ = 648000.

The previous prime is 2013821. The next prime is 2013833. The reversal of 2013822 is 2283102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2013795 and 2013804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013821) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4822 + ... + 5222.

2^2013822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2013822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2334816).

2013822 is an abundant number, since it is smaller than the sum of its proper divisors (2655810).

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

2013822 is a wasteful number, since it uses less digits than its factorization.

2013822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2013822 is about 1419.0919631934. The cubic root of 2013822 is about 126.2816827324.

Adding to 2013822 its reverse (2283102), we get a palindrome (4296924).

The spelling of 2013822 in words is "two million, thirteen thousand, eight hundred twenty-two".