864002744 has 64 divisors (see below), whose sum is σ = 1805587200. Its totient is φ = 384313600.

The previous prime is 864002743. The next prime is 864002753. The reversal of 864002744 is 447200468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864002743) 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, 837509 + ... + 838539.

It is an arithmetic number, because the mean of its divisors is an integer number (28212300).

Almost surely, 2^864002744 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 864002744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (902793600).

864002744 is an abundant number, since it is smaller than the sum of its proper divisors (941584456).

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

864002744 is a wasteful number, since it uses less digits than its factorization.

864002744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 864002744 is about 29393.9235897490. The cubic root of 864002744 is about 952.4416394735.

The spelling of 864002744 in words is "eight hundred sixty-four million, two thousand, seven hundred forty-four".