403822 has 4 divisors (see below), whose sum is σ = 605736. Its totient is φ = 201910.

The previous prime is 403817. The next prime is 403829. The reversal of 403822 is 228304.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 403822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403829) by changing a digit.

403822 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100954 + ... + 100957.

It is an arithmetic number, because the mean of its divisors is an integer number (151434).

2⁴⁰³⁸²² is an apocalyptic number.

403822 is a deficient number, since it is larger than the sum of its proper divisors (201914).

403822 is a wasteful number, since it uses less digits than its factorization.

403822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201913.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 403822 is about 635.4699048736. The cubic root of 403822 is about 73.9145592889.

It can be divided in two parts, 403 and 822, that added together give a triangular number (1225 = T₄₉).

The spelling of 403822 in words is "four hundred three thousand, eight hundred twenty-two".