3914488728 has 64 divisors (see below), whose sum is σ = 10879344000. Its totient is φ = 1304138016.

The previous prime is 3914488727. The next prime is 3914488751. The reversal of 3914488728 is 8278844193.

It is a happy number.

3914488728 is a `hidden beast` number, since 3 + 91 + 4 + 488 + 72 + 8 = 666.

3914488728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3914488723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553551 + ... + 560577.

It is an arithmetic number, because the mean of its divisors is an integer number (169989750).

Almost surely, 2^3914488728 is an apocalyptic number.

It is an amenable number.

3914488728 is an abundant number, since it is smaller than the sum of its proper divisors (6964855272).

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

3914488728 is a wasteful number, since it uses less digits than its factorization.

3914488728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9621 (or 9611 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 3914488728 is about 62565.8751077614. The cubic root of 3914488728 is about 1576.0077505266.

The spelling of 3914488728 in words is "three billion, nine hundred fourteen million, four hundred eighty-eight thousand, seven hundred twenty-eight".