4239986688 has 208 divisors, whose sum is σ = 14358495360. Its totient is φ = 1211203584.

The previous prime is 4239986671. The next prime is 4239986689. The reversal of 4239986688 is 8866899324.

It is a super-2 number, since 2×4239986688² = 35954974228834418688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (4239986689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771406 + ... + 776882.

Almost surely, 2^4239986688 is an apocalyptic number.

4239986688 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4239986688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7179247680).

4239986688 is an abundant number, since it is smaller than the sum of its proper divisors (10118508672).

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

4239986688 is an equidigital number, since it uses as much as digits as its factorization.

4239986688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5517 (or 5489 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 63.

The square root of 4239986688 is about 65115.1801656112. The cubic root of 4239986688 is about 1618.5327730490.

The spelling of 4239986688 in words is "four billion, two hundred thirty-nine million, nine hundred eighty-six thousand, six hundred eighty-eight".