8438500 has 48 divisors (see below), whose sum is σ = 21071232. Its totient is φ = 2892000.

The previous prime is 8438483. The next prime is 8438503. The reversal of 8438500 is 58348.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (8438503) 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, 2295 + ... + 4705.

It is an arithmetic number, because the mean of its divisors is an integer number (438984).

Almost surely, 2^8438500 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 8438500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10535616).

8438500 is an abundant number, since it is smaller than the sum of its proper divisors (12632732).

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

8438500 is a wasteful number, since it uses less digits than its factorization.

8438500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437 (or 2425 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 8438500 is about 2904.9096371488. The cubic root of 8438500 is about 203.5893636458.

The spelling of 8438500 in words is "eight million, four hundred thirty-eight thousand, five hundred".