8398380 has 96 divisors (see below), whose sum is σ = 25401600. Its totient is φ = 2066688.

The previous prime is 8398349. The next prime is 8398387. The reversal of 8398380 is 838938.

8398380 = T₂₂₄ + T₂₂₅ + ... + T₃₉₄.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8398387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60351 + ... + 60489.

It is an arithmetic number, because the mean of its divisors is an integer number (264600).

Almost surely, 2^8398380 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 8398380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12700800).

8398380 is an abundant number, since it is smaller than the sum of its proper divisors (17003220).

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

8398380 is a wasteful number, since it uses less digits than its factorization.

8398380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 8398380 is about 2897.9958592103. The cubic root of 8398380 is about 203.2662025696.

It can be divided in two parts, 8398 and 380, that added together give a palindrome (8778).

The spelling of 8398380 in words is "eight million, three hundred ninety-eight thousand, three hundred eighty".