8398260 has 144 divisors (see below), whose sum is σ = 28466256. Its totient is φ = 1990656.

The previous prime is 8398231. The next prime is 8398267. The reversal of 8398260 is 628938.

8398260 is a `hidden beast` number, since 8 + 398 + 260 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 34596 + 8363664 = 186^2 + 2892^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8398267) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86532 + ... + 86628.

Almost surely, 2^8398260 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 8398260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14233128).

8398260 is an abundant number, since it is smaller than the sum of its proper divisors (20067996).

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

8398260 is a wasteful number, since it uses less digits than its factorization.

8398260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 8398260 is about 2897.9751551730. The cubic root of 8398260 is about 203.2652344440.

The spelling of 8398260 in words is "eight million, three hundred ninety-eight thousand, two hundred sixty".