4640968394 has 4 divisors (see below), whose sum is σ = 6961452594. Its totient is φ = 2320484196.

The previous prime is 4640968361. The next prime is 4640968403. The reversal of 4640968394 is 4938690464.

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

It can be written as a sum of positive squares in only one way, i.e., 2546716225 + 2094252169 = 50465^2 + 45763^2 .

It is a Curzon 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 as a sum of consecutive naturals, namely, 1160242097 + ... + 1160242100.

Almost surely, 2^4640968394 is an apocalyptic number.

4640968394 is a deficient number, since it is larger than the sum of its proper divisors (2320484200).

4640968394 is a wasteful number, since it uses less digits than its factorization.

4640968394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320484199.

The product of its (nonzero) digits is 4478976, while the sum is 53.

The square root of 4640968394 is about 68124.6533495768. The cubic root of 4640968394 is about 1668.0262090762.

The spelling of 4640968394 in words is "four billion, six hundred forty million, nine hundred sixty-eight thousand, three hundred ninety-four".