3949236688 has 20 divisors (see below), whose sum is σ = 7653304800. Its totient is φ = 1974190304.

The previous prime is 3949236673. The next prime is 3949236691. The reversal of 3949236688 is 8866329493.

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, 57381 + ... + 105787.

It is an arithmetic number, because the mean of its divisors is an integer number (382665240).

Almost surely, 2^3949236688 is an apocalyptic number.

It is an amenable number.

3949236688 is a deficient number, since it is larger than the sum of its proper divisors (3704068112).

3949236688 is a wasteful number, since it uses less digits than its factorization.

3949236688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53514 (or 53508 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 58.

The square root of 3949236688 is about 62842.9525722654. The cubic root of 3949236688 is about 1580.6572984885.

The spelling of 3949236688 in words is "three billion, nine hundred forty-nine million, two hundred thirty-six thousand, six hundred eighty-eight".