4320757638 has 24 divisors (see below), whose sum is σ = 9912327048. Its totient is φ = 1355531712.

The previous prime is 4320757627. The next prime is 4320757657. The reversal of 4320757638 is 8367570234.

4320757638 is a `hidden beast` number, since 4 + 3 + 2 + 0 + 7 + 5 + 7 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 4320757593 and 4320757602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7059756 + ... + 7060367.

It is an arithmetic number, because the mean of its divisors is an integer number (413013627).

Almost surely, 2^4320757638 is an apocalyptic number.

4320757638 is an abundant number, since it is smaller than the sum of its proper divisors (5591569410).

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

4320757638 is a wasteful number, since it uses less digits than its factorization.

4320757638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14120148 (or 14120145 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The square root of 4320757638 is about 65732.4701954825. The cubic root of 4320757638 is about 1628.7457748514.

The spelling of 4320757638 in words is "four billion, three hundred twenty million, seven hundred fifty-seven thousand, six hundred thirty-eight".