9420842 has 8 divisors (see below), whose sum is σ = 14145732. Its totient is φ = 4705600.

The previous prime is 9420841. The next prime is 9420863. The reversal of 9420842 is 2480249.

It can be written as a sum of positive squares in 2 ways, for example, as 8357881 + 1062961 = 2891^2 + 1031^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9420841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992 + ... + 4452.

Almost surely, 2^9420842 is an apocalyptic number.

9420842 is a deficient number, since it is larger than the sum of its proper divisors (4724890).

9420842 is a wasteful number, since it uses less digits than its factorization.

9420842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 9420842 is about 3069.3390167917. The cubic root of 9420842 is about 211.2012933470.

The spelling of 9420842 in words is "nine million, four hundred twenty thousand, eight hundred forty-two".