6430949394 has 32 divisors (see below), whose sum is σ = 13033730304. Its totient is φ = 2115078480.

The previous prime is 6430949389. The next prime is 6430949401. The reversal of 6430949394 is 4939490346.

It is a super-2 number, since 2×6430949394² = 82714220216377934472, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395917 + ... + 411839.

It is an arithmetic number, because the mean of its divisors is an integer number (407304072).

Almost surely, 2^6430949394 is an apocalyptic number.

6430949394 is an abundant number, since it is smaller than the sum of its proper divisors (6602780910).

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

6430949394 is a wasteful number, since it uses less digits than its factorization.

6430949394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16822.

The product of its (nonzero) digits is 2519424, while the sum is 51.

The square root of 6430949394 is about 80193.2004224797. The cubic root of 6430949394 is about 1859.6235213286.

The spelling of 6430949394 in words is "six billion, four hundred thirty million, nine hundred forty-nine thousand, three hundred ninety-four".