1023822 has 24 divisors (see below), whose sum is σ = 2315664. Its totient is φ = 326304.

The previous prime is 1023821. The next prime is 1023833. The reversal of 1023822 is 2283201.

It is a happy number.

It is a super-2 number, since 2×1023822² = 2096422975368, which contains 22 as substring.

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 = 1023795 and 1023804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 823 + ... + 1650.

It is an arithmetic number, because the mean of its divisors is an integer number (96486).

2^1023822 is an apocalyptic number.

1023822 is an abundant number, since it is smaller than the sum of its proper divisors (1291842).

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

1023822 is a wasteful number, since it uses less digits than its factorization.

1023822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504 (or 2501 counting only the distinct ones).

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

The square root of 1023822 is about 1011.8408965840. The cubic root of 1023822 is about 100.7878433941.

It can be divided in two parts, 10 and 23822, that added together give a palindrome (23832).

The spelling of 1023822 in words is "one million, twenty-three thousand, eight hundred twenty-two".