6442384306 has 4 divisors (see below), whose sum is σ = 9663576462. Its totient is φ = 3221192152.

The previous prime is 6442384279. The next prime is 6442384373. The reversal of 6442384306 is 6034832446.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6034832446 = 2 ⋅3017416223.

It can be written as a sum of positive squares in only one way, i.e., 5466384225 + 976000081 = 73935^2 + 31241^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610596075 + ... + 1610596078.

Almost surely, 2^6442384306 is an apocalyptic number.

6442384306 is a deficient number, since it is larger than the sum of its proper divisors (3221192156).

6442384306 is a wasteful number, since it uses less digits than its factorization.

6442384306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221192155.

The product of its (nonzero) digits is 331776, while the sum is 40.

The square root of 6442384306 is about 80264.4647773845. The cubic root of 6442384306 is about 1860.7250714970.

The spelling of 6442384306 in words is "six billion, four hundred forty-two million, three hundred eighty-four thousand, three hundred six".