8340042 has 16 divisors (see below), whose sum is σ = 16954272. Its totient is φ = 2734320.

The previous prime is 8340041. The next prime is 8340043. The reversal of 8340042 is 2400438.

It is a happy number.

8340042 is digitally balanced in base 4, 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 (8340041) and next prime (8340043).

It is not an unprimeable number, because it can be changed into a prime (8340041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11028 + ... + 11759.

It is an arithmetic number, because the mean of its divisors is an integer number (1059642).

Almost surely, 2^8340042 is an apocalyptic number.

8340042 is an abundant number, since it is smaller than the sum of its proper divisors (8614230).

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

8340042 is a wasteful number, since it uses less digits than its factorization.

8340042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22853.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 8340042 is about 2887.9130873349. The cubic root of 8340042 is about 202.7944565474.

The spelling of 8340042 in words is "eight million, three hundred forty thousand, forty-two".