4389387660 has 108 divisors (see below), whose sum is σ = 15488299008. Its totient is φ = 1003286592.

The previous prime is 4389387649. The next prime is 4389387677. The reversal of 4389387660 is 667839834.

It is a junction number, because it is equal to n+sod(n) for n = 4389387597 and 4389387606.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 240012 + ... + 257651.

It is an arithmetic number, because the mean of its divisors is an integer number (143410176).

Almost surely, 2^4389387660 is an apocalyptic number.

It is an amenable number.

4389387660 is an abundant number, since it is smaller than the sum of its proper divisors (11098911348).

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

4389387660 is a wasteful number, since it uses less digits than its factorization.

4389387660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497692 (or 497680 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The square root of 4389387660 is about 66252.4539922862. The cubic root of 4389387660 is about 1637.3240691280.

The spelling of 4389387660 in words is "four billion, three hundred eighty-nine million, three hundred eighty-seven thousand, six hundred sixty".