9439420 has 24 divisors (see below), whose sum is σ = 20989584. Its totient is φ = 3553536.

The previous prime is 9439393. The next prime is 9439421. The reversal of 9439420 is 249349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9439421) 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, 13542 + ... + 14221.

It is an arithmetic number, because the mean of its divisors is an integer number (874566).

Almost surely, 2^9439420 is an apocalyptic number.

It is an amenable number.

9439420 is an abundant number, since it is smaller than the sum of its proper divisors (11550164).

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

9439420 is a wasteful number, since it uses less digits than its factorization.

9439420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27789 (or 27787 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 9439420 is about 3072.3639107371. The cubic root of 9439420 is about 211.3400325828.

The spelling of 9439420 in words is "nine million, four hundred thirty-nine thousand, four hundred twenty".