9420394920 has 32 divisors (see below), whose sum is σ = 28261185120. Its totient is φ = 2512105280.

The previous prime is 9420394891. The next prime is 9420394927. The reversal of 9420394920 is 294930249.

It is not an unprimeable number, because it can be changed into a prime (9420394927) 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, 39251526 + ... + 39251765.

It is an arithmetic number, because the mean of its divisors is an integer number (883162035).

Almost surely, 2^9420394920 is an apocalyptic number.

It is an amenable number.

9420394920 is an abundant number, since it is smaller than the sum of its proper divisors (18840790200).

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

9420394920 is a wasteful number, since it uses less digits than its factorization.

9420394920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78503305 (or 78503301 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 9420394920 is about 97058.7189282859. The cubic root of 9420394920 is about 2111.9795233753.

The spelling of 9420394920 in words is "nine billion, four hundred twenty million, three hundred ninety-four thousand, nine hundred twenty".