9420042 has 8 divisors (see below), whose sum is σ = 18840096. Its totient is φ = 3140012.

The previous prime is 9420017. The next prime is 9420043. The reversal of 9420042 is 2400249.

It is a sphenic number, since it is the product of 3 distinct primes.

9420042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (9420043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 784998 + ... + 785009.

It is an arithmetic number, because the mean of its divisors is an integer number (2355012).

Almost surely, 2^9420042 is an apocalyptic number.

9420042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9420042 is a wasteful number, since it uses less digits than its factorization.

9420042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570012.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 9420042 is about 3069.2086928067. The cubic root of 9420042 is about 211.1953149070.

The spelling of 9420042 in words is "nine million, four hundred twenty thousand, forty-two".