864340248 has 128 divisors (see below), whose sum is σ = 2465337600. Its totient is φ = 250822656.

The previous prime is 864340241. The next prime is 864340249. The reversal of 864340248 is 842043468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864340241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332040 + ... + 334632.

It is an arithmetic number, because the mean of its divisors is an integer number (19260450).

Almost surely, 2^864340248 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 864340248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1232668800).

864340248 is an abundant number, since it is smaller than the sum of its proper divisors (1600997352).

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

864340248 is a wasteful number, since it uses less digits than its factorization.

864340248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681 (or 2677 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 39.

The square root of 864340248 is about 29399.6640797136. The cubic root of 864340248 is about 952.5656402432.

The spelling of 864340248 in words is "eight hundred sixty-four million, three hundred forty thousand, two hundred forty-eight".