819468 has 72 divisors (see below), whose sum is σ = 2384928. Its totient is φ = 235008.

The previous prime is 819463. The next prime is 819473. The reversal of 819468 is 864918.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (819463) and next prime (819473).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (819463) by changing a digit.

819468 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 in 23 ways as a sum of consecutive naturals, for example, 7905 + ... + 8007.

It is an arithmetic number, because the mean of its divisors is an integer number (33124).

2⁸¹⁹⁴⁶⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 819468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1192464).

819468 is an abundant number, since it is smaller than the sum of its proper divisors (1565460).

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

819468 is a wasteful number, since it uses less digits than its factorization.

819468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 138 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 819468 is about 905.2447182945. The cubic root of 819468 is about 93.5787701139.

The spelling of 819468 in words is "eight hundred nineteen thousand, four hundred sixty-eight".