9813438 has 24 divisors (see below), whose sum is σ = 21411000. Its totient is φ = 3248304.

The previous prime is 9813431. The next prime is 9813451. The reversal of 9813438 is 8343189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9813431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 853 + ... + 4511.

It is an arithmetic number, because the mean of its divisors is an integer number (892125).

Almost surely, 2^9813438 is an apocalyptic number.

9813438 is an abundant number, since it is smaller than the sum of its proper divisors (11597562).

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

9813438 is a wasteful number, since it uses less digits than its factorization.

9813438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3816 (or 3813 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 9813438 is about 3132.6407390571. The cubic root of 9813438 is about 214.0952643084.

The spelling of 9813438 in words is "nine million, eight hundred thirteen thousand, four hundred thirty-eight".