8408942 has 4 divisors (see below), whose sum is σ = 12613416. Its totient is φ = 4204470.

The previous prime is 8408941. The next prime is 8408971. The reversal of 8408942 is 2498048.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8408941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2102234 + ... + 2102237.

It is an arithmetic number, because the mean of its divisors is an integer number (3153354).

Almost surely, 2^8408942 is an apocalyptic number.

8408942 is a deficient number, since it is larger than the sum of its proper divisors (4204474).

8408942 is a wasteful number, since it uses less digits than its factorization.

8408942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204473.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 8408942 is about 2899.8175804695. The cubic root of 8408942 is about 203.3513776575.

The spelling of 8408942 in words is "eight million, four hundred eight thousand, nine hundred forty-two".