4068439904 has 24 divisors (see below), whose sum is σ = 8431307640. Its totient is φ = 1927155456.

The previous prime is 4068439889. The next prime is 4068439913. The reversal of 4068439904 is 4099348604.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3345149 + ... + 3346364.

It is an arithmetic number, because the mean of its divisors is an integer number (351304485).

Almost surely, 2^4068439904 is an apocalyptic number.

It is an amenable number.

4068439904 is an abundant number, since it is smaller than the sum of its proper divisors (4362867736).

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

4068439904 is a wasteful number, since it uses less digits than its factorization.

4068439904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6691542 (or 6691534 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 4068439904 is about 63784.3233404573. The cubic root of 4068439904 is about 1596.4033670359.

The spelling of 4068439904 in words is "four billion, sixty-eight million, four hundred thirty-nine thousand, nine hundred four".