3728238684 has 48 divisors (see below), whose sum is σ = 9106384896. Its totient is φ = 1185710400.

The previous prime is 3728238673. The next prime is 3728238697. The reversal of 3728238684 is 4868328273.

It is a happy number.

3728238684 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44167 + ... + 96990.

It is an arithmetic number, because the mean of its divisors is an integer number (189716352).

Almost surely, 2^3728238684 is an apocalyptic number.

It is an amenable number.

3728238684 is an abundant number, since it is smaller than the sum of its proper divisors (5378146212).

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

3728238684 is a wasteful number, since it uses less digits than its factorization.

3728238684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141266 (or 141264 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 51.

The square root of 3728238684 is about 61059.3046472034. The cubic root of 3728238684 is about 1550.6052002269.

The spelling of 3728238684 in words is "three billion, seven hundred twenty-eight million, two hundred thirty-eight thousand, six hundred eighty-four".