9400385 has 8 divisors (see below), whose sum is σ = 11330280. Its totient is φ = 7487104.

The previous prime is 9400381. The next prime is 9400387. The reversal of 9400385 is 5830049.

It can be written as a sum of positive squares in 4 ways, for example, as 394384 + 9006001 = 628^2 + 3001^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9400385 - 2² = 9400381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9400381) 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, 2870 + ... + 5199.

It is an arithmetic number, because the mean of its divisors is an integer number (1416285).

Almost surely, 2^9400385 is an apocalyptic number.

It is an amenable number.

9400385 is a deficient number, since it is larger than the sum of its proper divisors (1929895).

9400385 is a wasteful number, since it uses less digits than its factorization.

9400385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8307.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 9400385 is about 3066.0047292853. The cubic root of 9400385 is about 211.0483107037.

Subtracting from 9400385 its sum of digits (29), we obtain a square (9400356 = 3066²).

The spelling of 9400385 in words is "nine million, four hundred thousand, three hundred eighty-five".