9400386 has 8 divisors (see below), whose sum is σ = 18800784. Its totient is φ = 3133460.

The previous prime is 9400381. The next prime is 9400387. The reversal of 9400386 is 6830049.

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

9400386 is an admirable number.

It is an Ulam number.

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 3 ways as a sum of consecutive naturals, for example, 783360 + ... + 783371.

It is an arithmetic number, because the mean of its divisors is an integer number (2350098).

Almost surely, 2^9400386 is an apocalyptic number.

9400386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9400386 is a wasteful number, since it uses less digits than its factorization.

9400386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566736.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 9400386 is about 3066.0048923640. The cubic root of 9400386 is about 211.0483181873.

Subtracting from 9400386 its sum of digits (30), we obtain a square (9400356 = 3066²).

The spelling of 9400386 in words is "nine million, four hundred thousand, three hundred eighty-six".