4011939808 has 48 divisors (see below), whose sum is σ = 8197731360. Its totient is φ = 1930432000.

The previous prime is 4011939793. The next prime is 4011939817. The reversal of 4011939808 is 8089391104.

It is a super-2 number, since 2×4011939808² = 32191322046030153728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281658 + ... + 295558.

It is an arithmetic number, because the mean of its divisors is an integer number (170786070).

Almost surely, 2^4011939808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4011939808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4098865680).

4011939808 is an abundant number, since it is smaller than the sum of its proper divisors (4185791552).

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

4011939808 is a wasteful number, since it uses less digits than its factorization.

4011939808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14251 (or 14243 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 4011939808 is about 63339.8753393153. The cubic root of 4011939808 is about 1588.9789217012.

The spelling of 4011939808 in words is "four billion, eleven million, nine hundred thirty-nine thousand, eight hundred eight".