860442329 has 4 divisors (see below), whose sum is σ = 860603700. Its totient is φ = 860280960.

The previous prime is 860442311. The next prime is 860442343. The reversal of 860442329 is 923244068.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 434639104 + 425803225 = 20848^2 + 20635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-860442329 is a prime.

It is a super-3 number, since 3×860442329³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 860442292 and 860442301.

It is not an unprimeable number, because it can be changed into a prime (860442389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72404 + ... + 83445.

It is an arithmetic number, because the mean of its divisors is an integer number (215150925).

Almost surely, 2^860442329 is an apocalyptic number.

It is an amenable number.

860442329 is a deficient number, since it is larger than the sum of its proper divisors (161371).

860442329 is a wasteful number, since it uses less digits than its factorization.

860442329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161370.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 860442329 is about 29333.2972745990. The cubic root of 860442329 is about 951.1315524948.

The spelling of 860442329 in words is "eight hundred sixty million, four hundred forty-two thousand, three hundred twenty-nine".