810378 has 32 divisors (see below), whose sum is σ = 1848000. Its totient is φ = 263088.

The previous prime is 810377. The next prime is 810379. The reversal of 810378 is 873018.

810378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (810377) and next prime (810379).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (810377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2148 + ... + 2496.

It is an arithmetic number, because the mean of its divisors is an integer number (57750).

2⁸¹⁰³⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 810378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (924000).

810378 is an abundant number, since it is smaller than the sum of its proper divisors (1037622).

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

810378 is a wasteful number, since it uses less digits than its factorization.

810378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 810378 is about 900.2099755057. The cubic root of 810378 is about 93.2314733419.

The spelling of 810378 in words is "eight hundred ten thousand, three hundred seventy-eight".