3728331388 has 6 divisors (see below), whose sum is σ = 6524579936. Its totient is φ = 1864165692.

The previous prime is 3728331377. The next prime is 3728331401. The reversal of 3728331388 is 8831338273.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 466041420 + ... + 466041427.

Almost surely, 2^3728331388 is an apocalyptic number.

It is an amenable number.

3728331388 is a deficient number, since it is larger than the sum of its proper divisors (2796248548).

3728331388 is a wasteful number, since it uses less digits than its factorization.

3728331388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932082851 (or 932082849 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 3728331388 is about 61060.0637733044. The cubic root of 3728331388 is about 1550.6180522396.

The spelling of 3728331388 in words is "three billion, seven hundred twenty-eight million, three hundred thirty-one thousand, three hundred eighty-eight".