8340426 has 24 divisors (see below), whose sum is σ = 18655104. Its totient is φ = 2690280.

The previous prime is 8340419. The next prime is 8340433. The reversal of 8340426 is 6240438.

It is an interprime number because it is at equal distance from previous prime (8340419) and next prime (8340433).

It is a super-2 number, since 2×8340426² = 139125411722952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8340426.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6916 + ... + 8031.

It is an arithmetic number, because the mean of its divisors is an integer number (777296).

Almost surely, 2^8340426 is an apocalyptic number.

8340426 is an abundant number, since it is smaller than the sum of its proper divisors (10314678).

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

8340426 is a wasteful number, since it uses less digits than its factorization.

8340426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14986 (or 14983 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 8340426 is about 2887.9795705649. The cubic root of 8340426 is about 202.7975689169.

The spelling of 8340426 in words is "eight million, three hundred forty thousand, four hundred twenty-six".