6406342984 has 16 divisors (see below), whose sum is σ = 12055261500. Its totient is φ = 3191606592.

The previous prime is 6406342961. The next prime is 6406342997. The reversal of 6406342984 is 4892436046.

It can be written as a sum of positive squares in 2 ways, for example, as 5342148100 + 1064194884 = 73090^2 + 32622^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443259 + ... + 1447690.

Almost surely, 2^6406342984 is an apocalyptic number.

It is an amenable number.

6406342984 is a deficient number, since it is larger than the sum of its proper divisors (5648918516).

6406342984 is a wasteful number, since it uses less digits than its factorization.

6406342984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891232 (or 2891228 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 46.

The square root of 6406342984 is about 80039.6338322459. The cubic root of 6406342984 is about 1857.2486960002.

The spelling of 6406342984 in words is "six billion, four hundred six million, three hundred forty-two thousand, nine hundred eighty-four".