2031822 has 48 divisors (see below), whose sum is σ = 5001360. Its totient is φ = 590976.

The previous prime is 2031811. The next prime is 2031839. The reversal of 2031822 is 2281302.

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 = 2031795 and 2031804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4218 + ... + 4674.

It is an arithmetic number, because the mean of its divisors is an integer number (104195).

2^2031822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2500680).

2031822 is an abundant number, since it is smaller than the sum of its proper divisors (2969538).

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

2031822 is a wasteful number, since it uses less digits than its factorization.

2031822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 494 counting only the distinct ones).

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

The square root of 2031822 is about 1425.4199381235. The cubic root of 2031822 is about 126.6568120988.

It can be divided in two parts, 203 and 1822, that added together give a square (2025 = 45²).

The spelling of 2031822 in words is "two million, thirty-one thousand, eight hundred twenty-two".