8404942 has 16 divisors (see below), whose sum is σ = 15517152. Its totient is φ = 3324960.

The previous prime is 8404939. The next prime is 8404951. The reversal of 8404942 is 2494048.

8404942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22909 + ... + 23272.

It is an arithmetic number, because the mean of its divisors is an integer number (969822).

Almost surely, 2^8404942 is an apocalyptic number.

8404942 is a deficient number, since it is larger than the sum of its proper divisors (7112210).

8404942 is a wasteful number, since it uses less digits than its factorization.

8404942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46203.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 8404942 is about 2899.1277998736. The cubic root of 8404942 is about 203.3191288713.

The spelling of 8404942 in words is "eight million, four hundred four thousand, nine hundred forty-two".