860299398 has 72 divisors (see below), whose sum is σ = 2151659952. Its totient is φ = 243352512.

The previous prime is 860299361. The next prime is 860299411. The reversal of 860299398 is 893992068.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3105636 + ... + 3105912.

It is an arithmetic number, because the mean of its divisors is an integer number (29884166).

Almost surely, 2^860299398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 860299398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1075829976).

860299398 is an abundant number, since it is smaller than the sum of its proper divisors (1291360554).

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

860299398 is a wasteful number, since it uses less digits than its factorization.

860299398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 860299398 is about 29330.8608465555. The cubic root of 860299398 is about 951.0788843467.

The spelling of 860299398 in words is "eight hundred sixty million, two hundred ninety-nine thousand, three hundred ninety-eight".