9388420 has 48 divisors (see below), whose sum is σ = 21310128. Its totient is φ = 3461120.

The previous prime is 9388409. The next prime is 9388427. The reversal of 9388420 is 248839.

It can be written as a sum of positive squares in 8 ways, for example, as 61504 + 9326916 = 248^2 + 3054^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9388427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17760 + ... + 18280.

It is an arithmetic number, because the mean of its divisors is an integer number (443961).

Almost surely, 2^9388420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9388420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10655064).

9388420 is an abundant number, since it is smaller than the sum of its proper divisors (11921708).

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

9388420 is a wasteful number, since it uses less digits than its factorization.

9388420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 9388420 is about 3064.0528716065. The cubic root of 9388420 is about 210.9587305014.

The spelling of 9388420 in words is "nine million, three hundred eighty-eight thousand, four hundred twenty".