9400398 has 64 divisors (see below), whose sum is σ = 22643712. Its totient is φ = 2545920.

The previous prime is 9400397. The next prime is 9400463. The reversal of 9400398 is 8930049.

9400398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9400393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91215 + ... + 91317.

It is an arithmetic number, because the mean of its divisors is an integer number (353808).

Almost surely, 2^9400398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9400398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11321856).

9400398 is an abundant number, since it is smaller than the sum of its proper divisors (13243314).

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

9400398 is a wasteful number, since it uses less digits than its factorization.

9400398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 9400398 is about 3066.0068493074. The cubic root of 9400398 is about 211.0484079914.

The spelling of 9400398 in words is "nine million, four hundred thousand, three hundred ninety-eight".