9438642 has 12 divisors (see below), whose sum is σ = 20450430. Its totient is φ = 3146208.

The previous prime is 9438623. The next prime is 9438661. The reversal of 9438642 is 2468349.

It is a happy number.

9438642 is a `hidden beast` number, since 9 + 4 + 3 + 8 + 642 = 666.

It is an interprime number because it is at equal distance from previous prime (9438623) and next prime (9438661).

It can be written as a sum of positive squares in only one way, i.e., 9418761 + 19881 = 3069^2 + 141^2 .

It is a d-powerful number, because it can be written as 9 + 4³ + 3⁴ + 8 + 6⁴ + 4¹⁰ + 2²³ .

It is a junction number, because it is equal to n+sod(n) for n = 9438597 and 9438606.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 262167 + ... + 262202.

Almost surely, 2^9438642 is an apocalyptic number.

9438642 is an abundant number, since it is smaller than the sum of its proper divisors (11011788).

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

9438642 is a wasteful number, since it uses less digits than its factorization.

9438642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524377 (or 524374 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 9438642 is about 3072.2372955226. The cubic root of 9438642 is about 211.3342261857.

The spelling of 9438642 in words is "nine million, four hundred thirty-eight thousand, six hundred forty-two".