4320561642 has 32 divisors (see below), whose sum is σ = 8708558400. Its totient is φ = 1428969600.

The previous prime is 4320561613. The next prime is 4320561649. The reversal of 4320561642 is 2461650234.

It is not an unprimeable number, because it can be changed into a prime (4320561649) by changing a digit.

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, 1064517 + ... + 1068567.

It is an arithmetic number, because the mean of its divisors is an integer number (272142450).

Almost surely, 2^4320561642 is an apocalyptic number.

4320561642 is an abundant number, since it is smaller than the sum of its proper divisors (4387996758).

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

4320561642 is a wasteful number, since it uses less digits than its factorization.

4320561642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5398.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 4320561642 is about 65730.9793172139. The cubic root of 4320561642 is about 1628.7211470345.

The spelling of 4320561642 in words is "four billion, three hundred twenty million, five hundred sixty-one thousand, six hundred forty-two".