4005681234 has 16 divisors (see below), whose sum is σ = 8017583520. Its totient is φ = 1334190240.

The previous prime is 4005681217. The next prime is 4005681247. The reversal of 4005681234 is 4321865004.

4005681234 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 4005681195 and 4005681204.

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, 250819 + ... + 266310.

It is an arithmetic number, because the mean of its divisors is an integer number (501098970).

Almost surely, 2^4005681234 is an apocalyptic number.

4005681234 is an abundant number, since it is smaller than the sum of its proper divisors (4011902286).

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

4005681234 is a wasteful number, since it uses less digits than its factorization.

4005681234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518425.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 4005681234 is about 63290.4513651151. The cubic root of 4005681234 is about 1588.1522295148.

The spelling of 4005681234 in words is "four billion, five million, six hundred eighty-one thousand, two hundred thirty-four".