8091426 has 32 divisors (see below), whose sum is σ = 18892800. Its totient is φ = 2262096.

The previous prime is 8091409. The next prime is 8091427. The reversal of 8091426 is 6241908.

It is a junction number, because it is equal to n+sod(n) for n = 8091393 and 8091402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8091427) 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, 76 + ... + 4023.

It is an arithmetic number, because the mean of its divisors is an integer number (590400).

Almost surely, 2^8091426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8091426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9446400).

8091426 is an abundant number, since it is smaller than the sum of its proper divisors (10801374).

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

8091426 is a wasteful number, since it uses less digits than its factorization.

8091426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 8091426 is about 2844.5431970705. The cubic root of 8091426 is about 200.7589992900.

The spelling of 8091426 in words is "eight million, ninety-one thousand, four hundred twenty-six".