4640244161 has 8 divisors (see below), whose sum is σ = 5314495680. Its totient is φ = 3968832528.

The previous prime is 4640244149. The next prime is 4640244173. The reversal of 4640244161 is 1614420464.

It is an interprime number because it is at equal distance from previous prime (4640244149) and next prime (4640244173).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4640244161 - 2⁶ = 4640244097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4640244761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706466 + ... + 713003.

It is an arithmetic number, because the mean of its divisors is an integer number (664311960).

Almost surely, 2^4640244161 is an apocalyptic number.

It is an amenable number.

4640244161 is a deficient number, since it is larger than the sum of its proper divisors (674251519).

4640244161 is a wasteful number, since it uses less digits than its factorization.

4640244161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419943.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 4640244161 is about 68119.3376435796. The cubic root of 4640244161 is about 1667.9394382152.

The spelling of 4640244161 in words is "four billion, six hundred forty million, two hundred forty-four thousand, one hundred sixty-one".