813426 has 8 divisors (see below), whose sum is σ = 1626864. Its totient is φ = 271140.

The previous prime is 813419. The next prime is 813427. The reversal of 813426 is 624318.

It is a happy number.

813426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

813426 is an admirable number.

It is a d-powerful number, because it can be written as 8³ + 1 + 4⁵ + 3¹² + 2⁹ + 6⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 813396 and 813405.

It is not an unprimeable number, because it can be changed into a prime (813427) by changing a digit.

813426 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 3 ways as a sum of consecutive naturals, for example, 67780 + ... + 67791.

It is an arithmetic number, because the mean of its divisors is an integer number (203358).

2⁸¹³⁴²⁶ is an apocalyptic number.

813426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

813426 is a wasteful number, since it uses less digits than its factorization.

813426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135576.

The product of its digits is 1152, while the sum is 24.

The square root of 813426 is about 901.9013249796. The cubic root of 813426 is about 93.3482147473.

Adding to 813426 its sum of digits (24), we get a triangular number (813450 = T₁₂₇₅).

The spelling of 813426 in words is "eight hundred thirteen thousand, four hundred twenty-six".