864860742 has 12 divisors (see below), whose sum is σ = 1873864980. Its totient is φ = 288286908.

The previous prime is 864860701. The next prime is 864860749. The reversal of 864860742 is 247068468.

864860742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864860749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24023892 + ... + 24023927.

It is an arithmetic number, because the mean of its divisors is an integer number (156155415).

Almost surely, 2^864860742 is an apocalyptic number.

864860742 is an abundant number, since it is smaller than the sum of its proper divisors (1009004238).

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

864860742 is a wasteful number, since it uses less digits than its factorization.

864860742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48047827 (or 48047824 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 864860742 is about 29408.5147873877. The cubic root of 864860742 is about 952.7568092543.

The spelling of 864860742 in words is "eight hundred sixty-four million, eight hundred sixty thousand, seven hundred forty-two".