813792426 has 8 divisors (see below), whose sum is σ = 1627584864. Its totient is φ = 271264140.

The previous prime is 813792409. The next prime is 813792437. The reversal of 813792426 is 624297318.

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

813792426 is an admirable number.

It is a super-2 number, since 2×813792426² = 1324516225229930952, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67816030 + ... + 67816041.

It is an arithmetic number, because the mean of its divisors is an integer number (203448108).

Almost surely, 2^813792426 is an apocalyptic number.

813792426 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.

813792426 is a wasteful number, since it uses less digits than its factorization.

813792426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135632076.

The product of its digits is 145152, while the sum is 42.

The square root of 813792426 is about 28527.0472709672. The cubic root of 813792426 is about 933.6222957597.

The spelling of 813792426 in words is "eight hundred thirteen million, seven hundred ninety-two thousand, four hundred twenty-six".