4388985966 has 16 divisors (see below), whose sum is σ = 8868467664. Its totient is φ = 1447912704.

The previous prime is 4388985943. The next prime is 4388985989. The reversal of 4388985966 is 6695898834.

It is an interprime number because it is at equal distance from previous prime (4388985943) and next prime (4388985989).

It is a junction number, because it is equal to n+sod(n) for n = 4388985897 and 4388985906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3770025 + ... + 3771188.

It is an arithmetic number, because the mean of its divisors is an integer number (554279229).

Almost surely, 2^4388985966 is an apocalyptic number.

4388985966 is an abundant number, since it is smaller than the sum of its proper divisors (4479481698).

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

4388985966 is a wasteful number, since it uses less digits than its factorization.

4388985966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7541315.

The product of its digits is 89579520, while the sum is 66.

The square root of 4388985966 is about 66249.4223823876. The cubic root of 4388985966 is about 1637.2741211345.

The spelling of 4388985966 in words is "four billion, three hundred eighty-eight million, nine hundred eighty-five thousand, nine hundred sixty-six".