864002742 has 64 divisors (see below), whose sum is σ = 1826012160. Its totient is φ = 272160000.

The previous prime is 864002731. The next prime is 864002743. The reversal of 864002742 is 247200468.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3188067 + ... + 3188337.

It is an arithmetic number, because the mean of its divisors is an integer number (28531440).

Almost surely, 2^864002742 is an apocalyptic number.

864002742 is an abundant number, since it is smaller than the sum of its proper divisors (962009418).

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

864002742 is a wasteful number, since it uses less digits than its factorization.

864002742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 864002742 is about 29393.9235557283. The cubic root of 864002742 is about 952.4416387386.

The spelling of 864002742 in words is "eight hundred sixty-four million, two thousand, seven hundred forty-two".