4640430686 has 16 divisors (see below), whose sum is σ = 7334789760. Its totient is φ = 2195760600.

The previous prime is 4640430671. The next prime is 4640430733. The reversal of 4640430686 is 6860340464.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28490 + ... + 100461.

It is an arithmetic number, because the mean of its divisors is an integer number (458424360).

Almost surely, 2^4640430686 is an apocalyptic number.

4640430686 is a deficient number, since it is larger than the sum of its proper divisors (2694359074).

4640430686 is a wasteful number, since it uses less digits than its factorization.

4640430686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129919.

The product of its (nonzero) digits is 331776, while the sum is 41.

The square root of 4640430686 is about 68120.7067344431. The cubic root of 4640430686 is about 1667.9617867688.

The spelling of 4640430686 in words is "four billion, six hundred forty million, four hundred thirty thousand, six hundred eighty-six".